@proceedings {1896,
	title = {Addressing Lock-in, Interoperability, and Long-Term Maintenance Challenges Through Open Source: How Can Companies Strategically Use Open Source?},
	volume = {496},
	year = {2017},
	month = {05/2017},
	pages = {80-88},
	publisher = {Springer},
	abstract = {This industry paper reports on how strategic use of open source in company contexts can provide effective support for addressing the fundamental challenges of lock-in, interoperability, and longevity of software and associated digital assets. The fundamental challenges and an overview of an ongoing collaborative research project are presented. Through a conceptual model for open source usage in company contexts we characterise how companies engage with open source and elaborate on how the fundamental challenges can be effectively addressed through open source usage in company contexts.

},
	doi = {10.1007/978-3-319-57735-7_9},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-57735-7_9},
	author = {Lundell, Bj{\"o}rn and Gamalielsson, Jonas and Stefan Tengblad and Bahram Hooshyar Yousefi and Thomas Fischer and Gert Johansson and Bengt Rodung and Mattsson, Anders and Johan Oppmark and Gustavsson, Tomas and Feist, Jonas and Stefan Landemoo and Erik L{\"o}nroth}
}
@proceedings {1914,
	title = {Practices and Perceptions of UML Use in Open Source Projects},
	year = {2017},
	month = {05/2017},
	pages = {203-212},
	abstract = {Context: Open Source is getting more and more
collaborative with industry. At the same time, modeling is today
playing a crucial role in development of, e.g., safety critical
software. Goal: However, there is a lack of research about the
use of modeling in Open Source. Our goal is to shed some
light into the motivation and benefits of the use of modeling
and its use within project teams. Method: In this study, we
perform a survey among Open Source developers. We focus on
projects that use the Unified Modeling Language (UML) as a
representative for software modeling. Results: We received 485
answers of contributors of 458 different Open Source projects.
Conclusion: Collaboration seems to be the most important
motivation for using UML. It benefits new contributors and
contributors who do not create models. Teams use UML during
communication and planning of joint implementation efforts.},
	keywords = {architecture documentation, communication, effectiveness of UML, github, MOTIVATION, UML},
	author = {Truong Ho-Quang and Hebig, Regina and Gregorio Robles and Chaudron, Michel R. V. and Miguel Angel Fernandez}
}
@proceedings {1900,
	title = {Understanding When to Adopt a Library: A Case Study on ASF Projects},
	volume = {496},
	year = {2017},
	month = {05/2017},
	pages = {128-138},
	publisher = {Springer},
	abstract = {Software libraries are widely used by both industrial and open source client projects. Ideally, a client user of a library should adopt the latest version that the library project releases. However, sometimes the latest version is not better than a previous version. This is because the latest version may include additional developer effort to test and integrate all changed features. In this study, our main goal is to better understand the relationship between adoption of library versions and its release cycle. Specifically, we conducted an empirical study of release cycles for 23 libraries and how they were adopted by 415 Apache Software Foundation (ASF) client projects. Our findings show that software projects are quicker to update earlier rapid-release libraries compared to library projects with a longer release cycle. Moreover, results suggest that software projects are more likely to adopt the latest version of a rapid-release library compared to libraries with a longer release cycles.},
	keywords = {adoption, apache, apache software foundation, libraries},
	doi = {10.1007/978-3-319-57735-7_13},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-57735-7_13},
	author = {Ihara, Akinori and Daiki Fujibayashi and Hirohiko Suwa and Raula Gaikovina Kula and Kenichi Matsumoto}
}
@proceedings {1808,
	title = {How Do Free/Open Source Developers Pick Their Tools? A Delphi Study of the Debian Project},
	year = {2016},
	abstract = {Free and Open Source Software (FOSS) has come to play a critical role in the global software industry. Organizations are widely adopting FOSS and interacting with open source communities, and hence organizations have a considerable interest in seeing these communities flourishing. Very little research has focused on the tools used to develop that software. Given the absence of organizational policies and mandate that would occur in a traditional environment, an open question is how FOSS developers decide what tools to use. In this paper we report on a policy delphi study conducted in the Debian Project, one of the largest FOSS projects. Drawing from data collected in three phases from a panel of 21 experts, we identified 15 factors that affect their decision to adopt tools. This in turn can help FOSS communities to define a suitable policy of actions, in order to improve their processes.},
	keywords = {Delphi, Free/Open Source Software, Qualitative Study, study, tools},
	url = {https://www.researchgate.net/publication/291312269_How_Do_FreeOpen_Source_Developers_Pick_Their_Tools_A_Delphi_Study_of_the_Debian_Project},
	author = {Martin Krafft and Stol, Klaas-Jan and Fitzgerald, Brian}
}
@inbook {L{\'o}pez2016,
	title = {OSSAP {\textendash} A Situational Method for Defining Open Source Software Adoption Processes},
	booktitle = {Advanced Information Systems Engineering: 28th International Conference, CAiSE 2016, Ljubljana, Slovenia, June 13-17, 2016. Proceedings},
	year = {2016},
	pages = {524{\textendash}539},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	address = {Cham},
	abstract = {Organizations are increasingly becoming Open Source Software (OSS) adopters, either as a result of a strategic decision or just as a consequence of technological choices. The strategy followed to adopt OSS shapes organizations{\textquoteright} businesses; therefore methods to assess such impact are needed. In this paper, we propose OSSAP, a method for defining OSS Adoption business Processes, built using a Situational Method Engineering (SME) approach. We use SME to combine two well-known modelling methods, namely goal-oriented models (using i*) and business process models (using BPMN), with a pre-existing catalogue of goal-oriented OSS adoption strategy models. First, we define a repository of reusable method chunks, including the guidelines to apply them. Then, we define OSSAP as a composition of those method chunks to help organizations to improve their business processes in order to integrate the best fitting OSS adoption strategy. We illustrate it with an example of application in a telecommunications company.
},
	isbn = {978-3-319-39696-5},
	doi = {10.1007/978-3-319-39696-5_32},
	url = {http://dx.doi.org/10.1007/978-3-319-39696-5_32},
	author = {L{\'o}pez, Lidia and Costal, Dolors and Ralyt{\'e}, Jolita and Franch, Xavier and M{\'e}ndez, Luc{\'\i}a and Annosi, Maria Carmela},
	editor = {Nurcan, Selmin and Soffer, Pnina and Bajec, Marko and Eder, Johann}
}
@conference {Vasilescu:2016:SLM:2884781.2884875,
	title = {The Sky is Not the Limit: Multitasking Across GitHub Projects},
	booktitle = {Proceedings of the 38th International Conference on Software Engineering (ICSE 2016)},
	series = {ICSE {\textquoteright}16},
	year = {2016},
	pages = {994{\textendash}1005},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {Software development has always inherently required multitasking: developers switch between coding, reviewing, testing, designing, and meeting with colleagues. The advent of software ecosystems like GitHub has enabled something new: the ability to easily switch between projects. Developers also have social incentives to contribute to many projects; prolific contributors gain social recognition and (eventually) economic rewards. Multitasking, however, comes at a cognitive cost: frequent context-switches can lead to distraction, sub-standard work, and even greater stress. In this paper, we gather ecosystem-level data on a group of programmers working on a large collection of projects. We develop models and methods for measuring the rate and breadth of a developers{\textquoteright} context-switching behavior, and we study how context-switching affects their productivity. We also survey developers to understand the reasons for and perceptions of multitasking. We find that the most common reason for multitasking is interrelationships and dependencies between projects. Notably, we find that the rate of switching and breadth (number of projects) of a developer{\textquoteright}s work matter. Developers who work on many projects have higher productivity if they focus on few projects per day. Developers that switch projects too much during the course of a day have lower productivity as they work on more projects overall. Despite these findings, developers perceptions of the benefits of multitasking are varied.
},
	keywords = {github, multitasking, productivity},
	isbn = {978-1-4503-3900-1},
	doi = {10.1145/2884781.2884875},
	url = {http://doi.acm.org/10.1145/2884781.2884875},
	author = {Vasilescu, Bogdan and Blincoe, Kelly and Xuan, Qi and Casalnuovo, Casey and Damian, Daniela and Devanbu, Premkumar and Filkov, Vladimir}
}
@inbook {1735,
	title = {On the Availability and Effectiveness of Open Source Software for Digital Signing of PDF Documents},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {71-80},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Digital signatures are important in order to ensure the integrity and authenticity of information communicated over the Internet involving different stakeholders within and beyond the borders of different nations. The topic has gained increased interest in the European context and there is legislation and project initiatives aiming to facilitate use and standardisation of digital signatures. Open standards and open source implementations of open standards are important means for the interoperability and long-term maintenance of software systems implementing digital signatures. In this paper we report from a study aiming to establish the availability and effectiveness of software provided under an open source license for digital signing and validation of PDF documents. Specifically, we characterise the use of digital signatures in Swedish Governmental agencies, report on the interoperability of open source and proprietary licensed software for digital signatures in PDF documents, and establish the effectiveness of software provided under an open source license for validation of digital signatures in PDF documents.
},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_7},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_7},
	author = {Gamalielsson, Jonas and Jakobsson, Fredrik and Lundell, Bj{\"o}rn and Feist, Jonas and Gustavsson, Tomas and Landqvist, Fredric},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@proceedings {1762,
	title = {A Data Set for Social Diversity Studies of GitHub Teams},
	year = {2015},
	month = {05/2015},
	publisher = {IEEE},
	abstract = {Like any other team oriented activity, the software
development process is effected by social diversity in the programmer
teams. The effect of team diversity can be significant,
but also complex, especially in decentralized teams. Discerning
the precise contribution of diversity on teams{\textquoteright} effectiveness
requires quantitative studies of large data sets.
Here we present for the first time a large data set of social
diversity attributes of programmers in GITHUB teams. Using
alias resolution, location data, and gender inference techniques,
we collected a team social diversity data set of 23,493 GITHUB
projects. We illustrate how the data set can be used in practice
with a series of case studies, and we hope its availability will foster
more interest in studying diversity issues in software teams.},
	keywords = {ghtorrent, github},
	url = {http://www.win.tue.nl/~aserebre/cr-msr-data-15.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/cr-msr-data-15.pdf},
	author = {Vasilescu, Bogdan and Serebrenik, Alexander and Filkov, Vladimir}
}
@proceedings {1763,
	title = {A Dataset of High Impact Bugs: Manually-Classified Issue Reports},
	year = {2015},
	month = {05/2015},
	publisher = {IEEE},
	abstract = {The importance of supporting test and maintenance
activities in software development has been increasing, since
recent software systems have become large and complex. Although
in the field of Mining Software Repositories (MSR) there
are many promising approaches to predicting, localizing, and
triaging bugs, most of them do not consider impacts of each
bug on users and developers but rather treat all bugs with equal
weighting, excepting a few studies on high impact bugs including
security, performance, blocking, and so forth. To make MSR
techniques more actionable and effective in practice, we need
deeper understandings of high impact bugs. In this paper we
introduced our dataset of high impact bugs which was created
by manually reviewing four thousand issue reports in four open
source projects (Ambari, Camel, Derby and Wicket).},
	keywords = {ambari, camel, derby, wicket},
	url = {http://oss.sys.wakayama-u.ac.jp/publications/pman3.cgi?DOWNLOAD=141},
	attachments = {https://flosshub.org/sites/flosshub.org/files/5594a518.pdf},
	author = {Ohira, Masao and Yutaro Kashiwa and Yosuke Yamatani and Hayato Yoshiyuki and Yoshiya Maeda and Nachai Limsettho and Keisuke Fujino and Hata, Hideaki and Ihara, Akinori and Kenichi Matsumoto}
}
@inbook {1730,
	title = {An Empirical Study of the Relation Between Strong Change Coupling and Defects Using History and Social Metrics in the Apache Aries Project},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {3-12},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Change coupling is an implicit relationship observed when artifacts change together during software evolution. The literature leverages change coupling analysis for several purposes. For example, researchers discovered that change coupling is associated with software defects and reveals relationships between software artifacts that cannot be found by scanning code or documentation. In this paper, we empirically investigate the strongest change couplings from the Apache Aries project to characterize and identify their impact in software development. We used historical and social metrics collected from commits and issue reports to build classification models to identify strong change couplings. Historical metrics were used because change coupling is a phenomenon associated with recurrent co-changes found in the software history. In turn, social metrics were used because developers often interact with each other in issue trackers to accomplish the tasks. Our classification models showed high accuracy, with 70-99 \% F-measure and 88-99 \% AUC. Using the same set of metrics, we also predicted the number of future defects for the artifacts involved in strong change couplings. More specifically, we were able to predict 45.7 \% of defects where these strong change couplings reoccurred in the post-release. These findings suggest that developers and projects managers should detect and monitor strong change couplings, because they can be associated with defects and tend to happen again in the subsequent release.},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_1},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_1},
	author = {Wiese, Igor Scaliante and Kuroda, Rodrigo Takashi and Re, Reginaldo and Oliva, Gustavo Ansaldi and Gerosa, MarcoAur{\'e}lio},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1734,
	title = {Examining Usability Work and Culture in OSS},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {58-67},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Organizational culture has been recognized as an influential factor affecting the successes and failures of usability work in organizations; however, there is a lack of research on organizational culture in open source software (OSS) development. This paper shows that there are different kinds of cultures in OSS development projects and builds propositions on the relationship between culture and usability work in OSS development projects. Partly those are derived from the literature, partly from an exploratory empirical inquiry. We speculate whether there is an ideal culture type for usability work in OSS development or whether usability work should be modified to fit the different cultures of OSS development projects.
},
	keywords = {culture, empirical study, open source software, Usability},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_6},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_6},
	author = {Rajanen, Mikko and Iivari, Netta},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1741,
	title = {First Results About Motivation and Impact of License Changes in Open Source Projects},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {137-145},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Free and open source software is characterized by the freedoms and criteria that are warranted by specific licenses. These licenses describe the rights and duties of the licensors and licensees. However, a licensing change may be necessary in the life of an open source project to meet legal developments or to allow the implementation of new business models. This paper examines the motivations and impacts of license changes in open source projects. After a state of the art on the subject, a set of case studies where projects changed their license is presented. Then a set of motivations to change licenses, the ways to legally make this change, the problems caused by this change and a set of benefits of the license change are discussed.
},
	keywords = {Business model, Contributor agreement, intellectual property, license, open source},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_13},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_13},
	author = {Viseur, Robert and Gregorio Robles},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@proceedings {1713,
	title = {Gender and Tenure Diversity in GitHub Teams},
	year = {2015},
	abstract = {Software development is usually a collaborative venture.
Open Source Software (OSS) projects are no exception; indeed,
by design, the OSS approach can accommodate teams
that are more open, geographically distributed, and dynamic
than commercial teams. This, we find, leads to OSS teams
that are quite diverse. Team diversity, predominantly in of-
fline groups, is known to correlate with team output, mostly
with positive effects. How about in OSS?
Using GITHUB, the largest publicly available collection of
OSS projects, we studied how gender and tenure diversity
relate to team productivity and turnover. Using regression
modeling of GITHUB data and the results of a survey, we
show that both gender and tenure diversity are positive and
significant predictors of productivity, together explaining a
sizable fraction of the data variability. These results can
inform decision making on all levels, leading to better outcomes
in recruiting and performance.},
	keywords = {gender, github, team},
	url = {http://bvasiles.github.io/papers/chi15.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/chi15.pdf},
	author = {Vasilescu, Bogdan and Posnett, Daryl and Ray, Baishakhi and van den Brand, Mark G.J. and Serebrenik, Alexander and Devanbu, Premkumar and Filkov, Vladimir}
}
@inbook {1732,
	title = {How Developers Acquire FLOSS Skills},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {23-32},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {With the increasing prominence of open collaboration as found in free/libre/open source software projects and other joint production communities, potential participants need to acquire skills. How these skills are learned has received little research attention. This article presents a large-scale survey (5,309 valid responses) in which users and developers of the beta release of a popular file download application were asked which learning styles were used to acquire technical and social skills. We find that the extent to which a person acquired the relevant skills through informal methods tends to be higher if the person is a free/libre/open source code contributor, while being a professional software developer does not have this effect. Additionally, younger participants proved more likely to make use of formal methods of learning. These insights will help individuals, commercial companies, educational institutions, governments and open collaborative projects decide how they promote learning.
},
	keywords = {competencies, Informal learning, Non-formal learning, open source, Skills, Software developer},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_3},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_3},
	attachments = {https://flosshub.org/sites/flosshub.org/files/oss-2015.pdf},
	author = {Barcomb, Ann and Grottke, Michael and Stauffert, Jan-Philipp and Dirk Riehle and Jahn, Sabrina},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1733,
	title = {Implicit Coordination: A Case Study of the Rails OSS Project},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {35-44},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Previous studies on coordination in OSS projects have studied explicit communication. Research has theorized on the existence of coordination without direct communication or implicit coordination in OSS projects, suggesting that it contributes to their success. However, due to the intangible nature of implicit coordination, no studies have confirmed these theories. We describe how implicit coordination can now be measured in modern collaborative development environments. Through a case study of a popular OSS GitHub-hosted project, we report on how and why features that support implicit coordination are used.
},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_4},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_4},
	author = {Blincoe, Kelly and Damian, Daniela},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@article {1747,
	title = {Inner Source--Adopting Open Source Development Practices within Organizations: A Tutorial},
	journal = {IEEE Software},
	year = {2015},
	month = {07/2015},
	pages = {1 - 1},
	publisher = {IEEE},
	abstract = {Inner source, the adoption and tailoring of Open Source development practices inside organizations, is a topic of increasing interest. While Inner Source offers a number of benefits, in our experience many practitioners are unclear as to what Inner Source is, and what steps to take towards adoption. In this article we present a tutorial in which we outline nine key factors, pertaining to product, process and organization, which we have found to be important in working with organizations who are interested in Inner Source. This paper illustrates these nine factors with three inner source initiatives that we have studied. },
	issn = {0740-7459},
	doi = {10.1109/MS.2014.77},
	author = {Stol, Klaas-Jan and Fitzgerald, Brian}
}
@article {1717,
	title = {An insight into license tools for open source software systems},
	journal = {Journal of Systems and Software},
	volume = {102},
	year = {2015},
	note = {"An additional tool can be found in FLOSSmole ( Howison et al., 2006), which is a central repository containing data and analyses about FLOSS projects collected and prepared in a decentralized manner. Content from FLOSSmole was intended to be used for the construction of an intelligent information system for FLOSS, namely FLOSSWALD (Hanft and Reichle, 2007). "},
	month = {04/2015},
	pages = {72 - 87},
	abstract = {Free/Libre/Open Source Software (FLOSS) has gained a lot of attention lately allowing organizations to incorporate third party source code into their implementations. When open source software libraries are used, software resources may be linked directly or indirectly with multiple open source licenses giving rise to potential license incompatibilities. Adequate support in license use is vital in order to avoid such violations and address how diverse licenses should be handled. In the current work we investigate software licensing giving a critical and comparative overview of existing assistive approaches and tools. These approaches are centered on three main categories: license information identification from source code and binaries, software metadata stored in code repositories, and license modeling and associated reasoning actions. We also give a formalization of the license compatibility problem and demonstrate the role of existing approaches in license use decisions.},
	keywords = {flossmole cited},
	issn = {01641212},
	doi = {10.1016/j.jss.2014.12.050},
	url = {http://www.sciencedirect.com/science/article/pii/S0164121214002945},
	author = {Kapitsaki, Georgia M. and Tselikas, Nikolaos D. and Foukarakis, Ioannis E.}
}
@proceedings {1748,
	title = {Mining Component Repositories for Installability Issues},
	year = {2015},
	month = {05/2015},
	abstract = {Component repositories play an increasingly relevant
role in software life-cycle management, from software
distribution to end-user, to deployment and upgrade management.
Software components shipped via such repositories are
equipped with rich metadata that describe their relationship (e.g.,
dependencies and conflicts) with other components.
In this practice paper we show how to use a tool, distcheck,
that uses component metadata to identify all the components in
a repository that cannot be installed (e.g., due to unsatisfiable
dependencies), provides detailed information to help developers
understanding the cause of the problem, and fix it in the
repository.
We report about detailed analyses of several repositories: the
Debian distribution, the OPAM package collection, and Drupal
modules. In each case, distcheck is able to efficiently identify not
installable components and provide valuable explanations of the
issues. Our experience provides solid ground for generalizing the
use of distcheck to other component repositories.},
	keywords = {drupal, opam},
	url = {http://www.dicosmo.org/preprints/msr-2015-distcheck.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/msr-2015-distcheck.pdf},
	author = {Abate, Pietro and Di Cosmo, Roberto and Gesbert, Louis and Fabrice Le Fessant and Ralf Treinen and Zacchiroli, Stefano}
}
@proceedings {1791,
	title = {Open Innovation for Innovation Tools: the Case of Co-Design Platforms},
	year = {2015},
	month = {08/2015},
	abstract = {This paper explores the dynamics of openness and enclosure of
innovation activities with IT artifacts on the example of co-design
platforms. While modern information and communication technologies
offer many new possibilities for innovation, they also
subject innovation to the underlying technical structures, which
can misdirect the activities on the platform. In order to avoid this,
we propose an open innovation approach for open innovation
solutions. We perform an empirical study on two co-design platforms
which become subjects of innovation themselves in an open
laboratory in the downtown area of a European city. Visitors to
the laboratory are allowed to engage in innovate activities regarding
the co-design platforms in whatever way they want. The results
show that they do not only address technical improvements
of the platforms, but also look into new directions to make the
platforms more relevant or to replace them by other ways of innovating
in the given contexts.},
	url = {http://www.opensym.org/os2015/proceedings-files/p201-fritzsche.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/p201-fritzsche.pdf},
	author = {Albrecht Fritzsche and Angela Roth and Kathrin Moslein}
}
@conference {1859,
	title = {OSSEAN: Mining Crowd Wisdom in Open Source Communities},
	booktitle = {2015 IEEE Symposium on Service-Oriented System Engineering (SOSE)},
	year = {2015},
	pages = {367 - 371},
	publisher = {IEEE},
	organization = {IEEE},
	address = {San Francisco Bay, CA, USA},
	abstract = {Nowadays open source software represents a successful crowd-based software production model and is becoming an ecosystem combining huge amounts of software producers (such as software developers) and consumers (such as software users and customers). Lots of research work has been conducted on analyzing software artifacts created by producers, but few of them reveal the power of feedback from consumers which we believe is very important for the evaluation and evolution of open source software. This paper introduces OSSEAN, a platform for Open Source Software Evaluating, Analyzing and Networking. OSSEAN divides the open source communities into two groups: software production communities and software consumption communities. The former contain structured software artifacts such as projects, source code and issues, while the latter are full of textual documents with rich semantics of user feedback. We show the power of OSSEAN with some interesting demos by analyzing more than 200 thousands of open source projects and 10 million documents.},
	keywords = {flossmole},
	doi = {10.1109/SOSE.2015.51},
	author = {Yin, Gang and Wang, Tao and Wang, Huaimin and Fan, Qiang and Zhang, Yang and Yu, Yue and Yang, Cheng}
}
@inbook {1738,
	title = {A Qualitative Study on the Adoption of Open Source Software in Information Technology Outsourcing Organizations},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {103-113},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {The purpose of this paper is to identify the influence of Outsourcing on Open source software (OSS) and further investigate the factors that impact the adoption of OSS in global Information Technology (IT) outsourcing organizations serviced by Indian IT services providers. This exploratory research adopted positivism research philosophy and qualitative approach. An in-depth interview was conducted with ten participants across IT outsourcing organizations, IT service providers, and OSS service providers. The results show that IT outsourcing was not found to have an impact on OSS adoption. However, eight factors including management support and OSS support availability was identified to influence OSS adoption. IT services providers can utilize this research model to increase their understanding of why some IT outsourcing organizations choose to adopt OSS, while seemingly similar ones facing similar market conditions do not.
},
	keywords = {Diffusion of innovation, Indian IT, IT outsourcing, open source software, OSS adoption, TOE},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_10},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_10},
	author = {Ramanathan, Lakshmanan and Iyer, Sundaresan Krishnan},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1743,
	title = {The Right to a Contribution: An Exploratory Survey on How Organizations Address It},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {157-167},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Free and Open Source Software (FOSS) projects are characterized by the opportunity to attract external contributors, where contributions can be in any form of copyrightable material, such as code or documentation. In most of them it is understood that contributions would be licensed in similar or compatible terms than the project{\textquoteright}s license. Some projects require a copyright transfer from the contributor to an organization for the work contributed to a project, such documents are known as copyright assignment agreements. In a way, it is similar to the copyright transfer than some researchers grant to a publisher. In this work we present an exploratory survey of the multiple visions of copyright assignments, and aggregate them in a work that researchers and practitioners could use to get informed of the alternatives available in the literature. We expect that our findings help inform practitioners on legal concerns when receiving external contributions.
},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_15},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_15},
	author = {Poo-Caama{\~n}o, Germ{\'a}n and German, DanielM.},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1740,
	title = {The RISCOSS Platform for Risk Management in Open Source Software Adoption},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {124-133},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Managing risks related to OSS adoption is a must for organizations that need to smoothly integrate OSS-related practices in their development processes. Adequate tool support may pave the road to effective risk management and ensure the sustainability of such activity. In this paper, we present the RISCOSS platform for managing risks in OSS adoption. RISCOSS builds upon a highly configurable data model that allows customization to several types of scopes. It implements two different working modes: exploration, where the impact of decisions may be assessed before making them; and continuous assessment, where risk variables (and their possible consequences on business goals) are continuously monitored and reported to decision-makers. The blackboard-oriented architecture of the platform defines several interfaces for the identified techniques, allowing new techniques to be plugged in.
},
	keywords = {Open source adoption, Open Source Projects, open source software, OSS, Risk Management, Software platform},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_12},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_12},
	author = {Franch, X. and Kenett, R. and Mancinelli, F. and Susi, A. and Ameller, D. and Annosi, M.C. and Ben-Jacob, R. and Blumenfeld, Y. and Franco, O.H. and Gross, D. and Lopez, L. and Morandini, M. and Oriol, M. and Siena, A.},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1731,
	title = {Scaling and Internationalizing an Agile FOSS Project: Lessons Learned},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {13-22},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {This paper describes problems that arose with the scaling and internationalization of the open source project Catrobat. The problems we faced were the lack of a centralized user management, insufficient scaling of our communication channels, and the necessity to adapt agile development techniques to remote collaboration. To solve the problems we decided to use a mix of open source tools (Git, IRC, LDAP) and commercial solutions (Jira, Confluence, GitHub) because we believe that this mix best fits our needs. Other projects can benefit from the lessons we learned during the reorganization of our knowledge base and communication tools, as infrastructure changes can be very labor-intensive and time-consuming.},
	keywords = {Agile development, communication, Distributed software development, Documentation management, Internationalization, kanban, Scaling},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_2},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_2},
	author = {Fellhofer, Stephan and Harzl, Annemarie and Slany, Wolfgang},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1737,
	title = {Smart Route Planning Using Open Data and Participatory Sensing},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {91-100},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Smart cities are not merely the infusion of technology into a city{\textquoteright}s infrastructure, but also require citizens interacting with their urban environment in a smart and informed manner. Transportation is key aspect of smart cities. In this paper, we present a smart route planning open-source system; SMART-GH utilizes open data and participatory sensing, where citizens actively participate in collecting data about the city in their daily environment, e.g., noise, air pollution, etc. SMART-GH then augments the routing logic with sensor data to answer queries such as {\textquoteleft}return the least noisy route{\textquoteright}. SMART-GH enables citizens to make smarter decisions about their daily commute, and subsequently improve their quality of life.
},
	keywords = {Open-data, open-source, Participatory sensing, Smart-city-routing},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_9},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_9},
	attachments = {https://flosshub.org/sites/flosshub.org/files/nallur15.pdf},
	author = {Nallur, Vivek and Elgammal, Amal and Clarke, Siobh{\'a}n},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1739,
	title = {Surveying the Adoption of FLOSS by Public Administration Local Organizations},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {114-123},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Background. The introduction of Open Source Software technologies in the Public Administration plays a key role in the spread of Open Source Software. The state of the art in the adoption of Open Source Software solutions in the Public Administration is not very well known even in areas like Lombardy, which is Italy{\textquoteright}s largest and most developed region.
Goal. The goal of the investigation documented in this paper is to obtain a clear picture about the introduction of Open Source Software technologies in the Public Administration, the obstacles to their adoption, and the willingness of stakeholders to proceed with their introduction.
Method. We carried out a qualitative and quantitative survey that was submitted to a representative part of the Public Administrations in Lombardy.
Results. The analysis of the qualitative and quantitative information shows that several Public Administrations are already using Open Source Software technologies, though not in all application areas. The savings are one frequently cited incentive to the adoption of Open Source Software. However, one obstacle is the fact that a comprehensive law on software in the Public Administration has not yet been approved.
Conclusions. Our analysis provides results that indicate a common understanding of incentives, obstacles, and opportunities for Open Source Software technologies in Public Administrations.},
	keywords = {FLOSS adoption, Italy, Public administrations, Survey},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_11},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_11},
	author = {Tosi, Davide and Lavazza, Luigi and Morasca, Sandro and Chiappa, Marco},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1736,
	title = {A Systematic Approach for Evaluating BPM Systems: Case Studies on Open Source and Proprietary Tools},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {81-90},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {Business Process Management Systems (BPMS) provide support for modeling, developing, deploying, executing and evaluating business processes in an organization. Selecting a BPMS is not a trivial task, not only due to the many existing alternatives, both in the open source and proprietary realms, but also because it requires a thorough evaluation of its capabilities, contextualizing them in the organizational environment in which they will be used. In this paper we present a methodology to guide the systematic evaluation of BPMS that takes into account the specific needs of each organization. It provides a list of key characteristics of BPMS which are ranked by the organization and evaluated using test cases and quantitative criteria. We also present case studies of open source and proprietary BPMS evaluations following our proposal.
},
	keywords = {Business Process Management Systems (BPMS), Evaluation methodology, Open source and proprietary BPMS, Systematic approach},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_8},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_8},
	author = {Delgado, Andrea and Calegari, Daniel and Milanese, Pablo and Falcon, Renatta and Garc{\'\i}a, Esteban},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@inbook {1742,
	title = {On the Variability of the BSD and MIT Licenses},
	booktitle = {Open Source Systems: Adoption and Impact},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {451},
	year = {2015},
	pages = {146-156},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	abstract = {The MIT/X11 and the BSD are two of the most important family of Free and Open Source (FOSS) licenses. Because these licenses are to be inserted into the files that use it, and because they are expected to be changed by those who use them, their text has suffered alterations over time. Some of this variability is the result of licenses containing template fields which allow the license to be customized to include information such as the copyright holder name. Other variability can be attributed to changes in spelling, punctuation, and adding or removing conditions. This study empirically evaluated the extent that the BSD and MIT/X11 family of licenses are varied, and the manner and frequency in which license texts vary from the original definition. The study found that the BSD family has little variability, with a significant proportion fitting the common standard. The MIT/X11 family of licenses exhibited significantly more variation, with a higher propensity to customize the license text. In addition, the MIT/X11 license has spawned several specialized variants which likely constitute different legal meanings. Based on these findings, recommendations are proposed on what variability needs to be accommodated by the Software Package Data Exchange (SPDX) which is in the process of standardizing the allowed variability of both licenses.
},
	isbn = {978-3-319-17836-3},
	doi = {10.1007/978-3-319-17837-0_14},
	url = {http://dx.doi.org/10.1007/978-3-319-17837-0_14},
	author = {Maryka, Trevor and German, DanielM. and Poo-Caama{\~n}o, Germ{\'a}n},
	editor = {Damiani, Ernesto and Frati, Fulvio and Dirk Riehle and Wasserman, Anthony I.}
}
@proceedings {1766,
	title = {Wait For It: Determinants of Pull Request Evaluation Latency on GitHub},
	year = {2015},
	month = {05/2015},
	publisher = {IEEE},
	abstract = {The pull-based development model, enabled by git
and popularised by collaborative coding platforms like BitBucket,
Gitorius, and GitHub, is widely used in distributed software
teams. While this model lowers the barrier to entry for potential
contributors (since anyone can submit pull requests to any repository),
it also increases the burden on integrators (i.e., members
of a project{\textquoteright}s core team, responsible for evaluating the proposed
changes and integrating them into the main development line),
who struggle to keep up with the volume of incoming pull
requests. In this paper we report on a quantitative study that tries
to resolve which factors affect pull request evaluation latency
in GitHub. Using regression modeling on data extracted from
a sample of GitHub projects using the Travis-CI continuous
integration service, we find that latency is a complex issue,
requiring many independent variables to explain adequately.},
	url = {https://bvasiles.github.io/papers/msr15.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/msr15.pdf},
	author = {Yu, Yue and Wang, Huaimin and Filkov, Vladimir and Devanbu, Premkumar and Vasilescu, Bogdan}
}
@article {1686,
	title = {Why and How Should Open Source Projects Adopt Time-Based Releases?},
	journal = {IEEE Software, 32(2)},
	year = {2015},
	abstract = {Traditional release strategies have a number of associated problems, which can be overcome by time-based release management. We present findings from interviews with key members of seven prominent volunteer-based open source projects, all of which have adopted a time-based release strategy. We discuss the importance of release planning, the numerous challenges that can result from a lack of such planning, and the benefits of time-based releases. Finally, we discuss how an open source project can adopt a time-based release strategy.},
	url = {https://www.researchgate.net/publication/268815678_Why_and_How_Should_Open_Source_Projects_Adopt_Time-Based_Releases},
	author = {Martin Michlmayr and Fitzgerald, Brian}
}
@inbook {1614,
	title = {The Agile Management of Development Projects of Software Combining Scrum, Kanban and Expert Consultation},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {176-180},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

At the University of Informatics Sciences (UCI), Havana, Cuba, it is found The Center of Free Solutions of Software (CESOL) who has an informatic project named {\textquotedblleft}Auditing of Source Code{\textquotedblright} (ACF). This project has as objective to develop an open source software solution to auditing the source code of several software solutions with an agile projects management. In the present investigation have been showed the experiences obtained in the mixed application of two methods of agile projects management; Kanban and Scrum, together with the method Judgment of Expert, during the stage of construction of the lifecycle of ACF, when it is was performed a quality auditing by specialists of the CALISOFT company. In the auditing were detected several errors and to resolve them was necessary to estimate efforts, time and to revalue the lifecycle of the project. Moreover, the investigation show how this method can be used as a guide for young project managers for a correct planification and how can be used as a personal organizational method.
},
	keywords = {Agile management of projects, kanban, scrum},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_25},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_25},
	author = {Febles Parker, MichelEvaristo and Monte, YusleydiFern{\'a}ndez},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@inbook {1625,
	title = {Automation of Agricultural Irrigation System with Open Source},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {232-233},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

In this present job, we seek to develop a prototype of an automated agricultural irrigation system, monitored and controlled remotely. For that, we will use inexpensive tools, flexibility and support such as Arduino, XBee and Android. Arduino and XBee, will be responsible of the automating the system. Android will achieve the remote monitoring and control from anywhere in the world where there is cellular service and Internet. In this way we can give the farmer the comfort and security that he don{\textquoteright}t get with a manually controlled system.
},
	keywords = {ADK, android, Arduino, XBee},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_36},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_36},
	author = {Quezada, BladimirJaimeP{\'e}rez and Fern{\'a}ndez, Javier},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@proceedings {1573,
	title = {"A bit of code": How the Stack Overflow Community Creates Quality Postings},
	year = {2014},
	month = {01/2014},
	pages = {1425-1434},
	publisher = {IEEE Computer Society},
	abstract = {The Stack Overflow web site is an online community where programmers can ask and answer one another{\textquoteright}s questions, earning points and badges. The site offers guidance in the form of a Frequently Asked Questions (FAQ), beginning with "What kind of questions can I ask here?" The answer explains that "the best Stack Overflow questions have a bit of source code in them". This paper explores the role of source code and non-source code text on Stack Overflow in both questions and answers. The primary contribution of this paper is to provide a more detailed understanding of whether the presence of source code (and how much) actually will produce the "best" Stack Overflow questions or answers. A second contribution of this paper is to determine how the non-code portions of the text might also contribute the "best" Stack Overflow postings.  },
	keywords = {COLLABORATION, collaborative development, data mining, developer network, knowledge collaboration, open content, text mining},
	doi = {http://dx.doi.org/10.1109/HICSS.2014.185},
	attachments = {https://flosshub.org/sites/flosshub.org/files/hicssSMFinalWatermark.pdf},
	author = {Squire, Megan and Funkhouser, Christian}
}
@inbook {1620,
	title = {Cuban GNU/Linux Nova Distribution for Server Computers},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {212-215},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

This article presents the novelties offered by the new version of GNU / Linux Nova distribution in its server edition, exposing the new features such as network attached storage, distributed files system, charge balance for PostgreSQL database servers and thin clients, as well as the basic features of a standard server. All these developments are obtained from the integration with the server management platform Zentyal designed to facilitate the work of the end users of the variant of this Cuban distribution.
},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_31},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_31},
	author = {Rosales Rosa, Eugenio and Fuentes Rodr{\'\i}guez, JuanManuel and F{\'\i}rvida Don{\'e}stevez, AbelAlfonso and Garc{\'\i}a Rivas, Dairelys},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@conference {Brunet:2014:DDD:2597073.2597115,
	title = {Do Developers Discuss Design?},
	booktitle = {Proceedings of the 11th Working Conference on Mining Software Repositories},
	series = {MSR 2014},
	year = {2014},
	pages = {340{\textendash}343},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {Design is often raised in the literature as important to attaining various properties and characteristics in a software system. At least for open-source projects, it can be hard to find evidence of ongoing design work in the technical artifacts produced as part of the development. Although developers usually do not produce specific design documents, they do communicate about design in different ways. In this paper, we provide quantitative evidence that developers address design through discussions in commits, issues, and pull requests. To achieve this, we built a discussions{\textquoteright} classifier and automatically labeled 102,122 discussions from 77 projects. Based on this data, we make four observations about the projects: i) on average, 25\% of the discussions in a project are about design; ii) on average, 26\% of developers contribute to at least one design discussion; iii) only 1\% of the developers contribute to more than 15\% of the discussions in a project; and iv) these few developers who contribute to a broad range of design discussions are also the top committers in a project.
},
	keywords = {Design Discussions, empirical study, machine learning, mining challenge, msr challenge},
	isbn = {978-1-4503-2863-0},
	doi = {10.1145/2597073.2597115},
	url = {http://doi.acm.org/10.1145/2597073.2597115},
	attachments = {https://flosshub.org/sites/flosshub.org/files/brunet.pdf},
	author = {Brunet, Jo{\~a}o and Murphy, Gail C. and Terra, Ricardo and Figueiredo, Jorge and Serey, Dalton}
}
@conference {Vasilescu:2014:SQS:2531602.2531659,
	title = {How Social Q\&A Sites Are Changing Knowledge Sharing in Open Source Software Communities},
	booktitle = {Proceedings of the 17th ACM Conference on Computer Supported Cooperative Work \&\#38; Social Computing},
	series = {CSCW {\textquoteright}14},
	year = {2014},
	pages = {342{\textendash}354},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {Historically, mailing lists have been the preferred means for coordinating development and user support activities. With the emergence and popularity growth of social Q\&A sites such as the StackExchange network (e.g., StackOverflow), this is beginning to change. Such sites offer different socio-technical incentives to their participants than mailing lists do, e.g., rich web environments to store and manage content collaboratively, or a place to showcase their knowledge and expertise more vividly to peers or potential recruiters. A key difference between StackExchange and mailing lists is gamification, i.e., StackExchange participants compete to obtain reputation points and badges. In this paper, we use a case study of R (a widely-used tool for data analysis) to investigate how mailing list participation has evolved since the launch of StackExchange. Our main contribution is the assembly of a joint data set from the two sources, in which participants in both the texttt{r-help} mailing list and StackExchange are identifiable. This permits their activities to be linked across the two resources and also over time. With this data set we found that user support activities show a strong shift away from texttt{r-help}. In particular, mailing list experts are migrating to StackExchange, where their behaviour is different. First, participants active both on texttt{r-help} and on StackExchange are more active than those who focus exclusively on only one of the two. Second, they provide faster answers on StackExchange than on texttt{r-help}, suggesting they are motivated by the emph{gamified} environment. To our knowledge, our study is the first to directly chart the changes in behaviour of specific contributors as they migrate into gamified environments, and has important implications for knowledge management in software engineering.},
	keywords = {a, crowdsourced knowledge, gamification., mailing lists, open source, social q\&\#38},
	isbn = {978-1-4503-2540-0},
	doi = {10.1145/2531602.2531659},
	url = {http://doi.acm.org/10.1145/2531602.2531659},
	attachments = {https://flosshub.org/sites/flosshub.org/files/cscw14.pdf},
	author = {Vasilescu, Bogdan and Serebrenik, Alexander and Devanbu, Prem and Filkov, Vladimir}
}
@inbook {1602,
	title = {Improving Mozilla{\textquoteright}s In-App Payment Platform},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {103-106},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

Nowadays, an in-app payment mechanism is offered in most existing mobile payment solutions. However, current solutions are not flexible and impose certain restrictions: users are limited to predefined payment options and merchants need to adapt their payment mechanisms to each payment provider they use. Ideally mobile payments should be as flexible as possible to be able to target various markets together with users{\textquoteright} spending habits. Mozilla wants to promote an open approach in mobile payments by offering a flexible, easily accessible solution. This solution is analyzed, its shortcomings and possible improvements are discussed leading to an original proposal.
},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_13},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_13},
	author = {Janczukowicz, Ewa and Bouabdallah, Ahmed and Braud, Arnaud and Fromentoux, Ga{\"e}l and Bonnin, Jean-Marie},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@inbook {1612,
	title = {A Layered Approach to Managing Risks in OSS Projects},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {168-171},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

In this paper, we propose a layered approach to managing risks in OSS projects. We define three layers: the first one for defining risk drivers by collecting and summarising available data from different data sources, including human-provided contextual information; the second layer, for converting these risk drivers into risk indicators; the third layer for assessing how these indicators impact the business of the adopting organisation. The contributions are: 1) the complexity of gathering data is isolated in one layer using appropriate techniques, 2) the context needed to interpret this data is provided by expert involvement evaluating risk scenarios and answering questionnaires in a second layer, 3) a pattern-based approach and risk reasoning techniques to link risks to business goals is proposed in the third layer.
},
	keywords = {Layered Model, open source, OSS, Risk Management},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_23},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_23},
	author = {Franch, Xavier and Kenett, Ron and Mancinelli, Fabio and Susi, Angelo and Ameller, David and Ben-Jacob, Ron and Siena, Alberto},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@article {1637,
	title = {Microblogging in Open Source Software Development: The Case of Drupal and Twitter},
	journal = {IEEE Software},
	volume = {31},
	year = {2014},
	month = {7/2014},
	pages = {72 - 80},
	abstract = {Microblogging is a popular form of social media that has quickly permeated both enterprise and open source communities. However, exactly how open source communities can leverage microblogging isn{\textquoteright}t yet well understood. The authors investigate how Drupal{\textquoteright}s open source community uses Twitter, a household name in microblogging. Their analysis of group and individual accounts of Drupal developers reveals that they take on similar but distinct roles. Both serve as communicators of essential links to a vast and growing community knowledge base, such as work artifacts, issues, documentation, and blog posts, but community members often express positive emotions when tweeting about work, which reinforces a sense of community.},
	issn = {0740-7459},
	doi = {10.1109/MS.2013.98},
	author = {Wang, Xiaofang and Kuzmickaja, Ilona and Stol, Klaas-Jan and Abrahamsson, Pekka and Fitzgerald, Brian}
}
@conference {1676,
	title = {OCData Hackathon @ CSCW 2014},
	booktitle = {Proceedings of the 17th ACM conference on Computer supported cooperative work \& social computing},
	year = {2014},
	pages = {317 - 318},
	publisher = {ACM Press},
	organization = {ACM Press},
	address = {Baltimore, Maryland, USANew York, New York, USA},
	abstract = {Online Communities data is prevalent in CSCW research, but the approaches to collecting, managing, analyzing and visualizing large scale social data varies on a lab by lab basis. The OCData hackathon is aimed at creating a community opportunity to share approaches to online communities research at the level of data. Integrating data, tools and theories to address interesting research questions remains a challenge for the community.},
	isbn = {9781450325417},
	doi = {10.1145/2556420.2558865},
	author = {Goggins, Sean and Andrea Wiggins and Susan Winter and Brian Butler}
}
@conference {Farah:2014:OSA:2597073.2597135,
	title = {OpenHub: A Scalable Architecture for the Analysis of Software Quality Attributes},
	booktitle = {Proceedings of the 11th Working Conference on Mining Software Repositories},
	series = {MSR 2014},
	year = {2014},
	pages = {420{\textendash}423},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {There is currently a vast array of open source projects available on the web, and although they are searchable by name or description in the search engines, there is no way to search for projects by how well they perform on a given set of quality attributes (e.g. usability or maintainability). With OpenHub, we present a scalable and extensible architecture for the static and runtime analysis of open source repositories written in Python, presenting the architecture and pinpointing future possibilities with it.
},
	keywords = {architecture, github, python, Quality Attributes},
	isbn = {978-1-4503-2863-0},
	doi = {10.1145/2597073.2597135},
	url = {http://doi.acm.org/10.1145/2597073.2597135},
	author = {Farah, Gabriel and Tejada, Juan Sebastian and Correal, Dario}
}
@inbook {1609,
	title = {Smart TV with Free Technologies in Support of Teaching-Learning Process},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {147-152},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

The digital divide created between Cuba and the rest of the world has forced us to use alternative technologies in order to preserve and strengthen the achievements of the Revolution in the field of education. One of the actions undertaken in this regard consists of making audiovisual equipment and media become a supplementary element of the teacher{\textquoteright}s educational work, and thus ensuring the rational use of the aforesaid media. This paper shows how to use a new trend of information technology and communications, using hybrid or smart TVs. This low-cost solution for low energy consumption, conceived as part of the educational process at all levels of the Island, provides some technical aspects and also shows, in the outline, some other ideas for incorporating this technology into the teaching-learning process. The results of laboratory tests are likewise shown.
},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_20},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_20},
	author = {Rosales Rosa, Eugenio and F{\'\i}rvida Don{\'e}stevez, AbelAlfonso and Gonz{\'a}lez Mu{\~n}o, Marielis and Fuentes, AllanPierra},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@inbook {1622,
	title = {USB Device Management in GNU/Linux Systems},
	booktitle = {Open Source Software: Mobile Open Source Technologies},
	series = {IFIP Advances in Information and Communication Technology},
	volume = {427},
	year = {2014},
	pages = {218-225},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	abstract = {

Protecting the access to USB ports has the same priority for information security than firewalls and antivirus software. Nowadays there are some tools that allow us to monitor and regulate the access to USB devices, but all of them are distributed under proprietary licenses. This work presents an application that solves the mentioned problem: ?{\textquoteright}How controlling the access to USB mass storage devices in GNU/Linux Operating Systems?
},
	isbn = {978-3-642-55127-7},
	doi = {10.1007/978-3-642-55128-4_33},
	url = {http://dx.doi.org/10.1007/978-3-642-55128-4_33},
	author = {Deroncel{\'e}, EdilbertoBlez and Fuentes, AllanPierra and Tejera Hern{\'a}ndez, DayanaCaridad and C{\'a}ceres Navarro, Haniel and F{\'\i}rvida Donest{\'e}vez, AbelAlfonso and Febles Parker, MichelEvaristo},
	editor = {Corral, Luis and Sillitti, Alberto and Succi, Giancarlo and Vlasenko, Jelena and Wasserman, AnthonyI.}
}
@inbook {1630,
	title = {The Babel of Software Development: Linguistic Diversity in Open Source},
	booktitle = {Social Informatics},
	series = {Lecture Notes in Computer Science},
	volume = {8238},
	year = {2013},
	pages = {391-404},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	isbn = {978-3-319-03259-7},
	doi = {10.1007/978-3-319-03260-3_34},
	url = {http://dx.doi.org/10.1007/978-3-319-03260-3_34},
	attachments = {https://flosshub.org/sites/flosshub.org/files/socinfo13.pdf},
	author = {Vasilescu, Bogdan and Serebrenik, Alexander and Brand, MarkG.J.},
	editor = {Jatowt, Adam and Lim, Ee-Peng and Ding, Ying and Miura, Asako and Tezuka, Taro and Dias, Ga{\"e}l and Tanaka, Katsumi and Flanagin, Andrew and Dai, BingTian}
}
@book {1534,
	title = {Towards a Reference Model on How to Utilise Open Standards in Open Source Projects: Experiences Based on Drupal},
	series = {IFIP Advances in Information and Communication TechnologyOpen Source Software: Quality Verification},
	volume = {404},
	year = {2013},
	pages = {257 - 263},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	address = {Berlin, Heidelberg},
	abstract = {

It is known that standards implemented in Open Source software (OSS) can promote a competitive market, reduce the risk for lock-in and improve interoperability, whilst there is limited knowledge concerning the relationship between standards and their implementations in OSS. In this paper we report from an ongoing case study conducted in the context of the ORIOS (Open Source software Reference Implementations of Open Standards) project in which influences between OSS communities and software standard communities are investigated. The study focuses on the Drupal project and three of its implemented standards (RDFa, CMIS, and OpenID).
},
	isbn = {978-3-642-38928-3},
	issn = {1868-422X},
	doi = {10.1007/978-3-642-38928-3_19},
	author = {Andersson, Stefan and Feist, Jonas and Gustavsson, Tomas and Strindberg, Henrik and Gamalielsson, Jonas and Lundell, Bj{\"o}rn and Grahn, Alexander},
	editor = {Petrinja, Etiel and Succi, Giancarlo and Ioini, Nabil and Sillitti, Alberto}
}
@proceedings {1498,
	title = {Who Does What during a Code Review? Datasets of OSS Peer Review Repositories },
	year = {2013},
	month = {05/2013},
	abstract = {We present four datasets that are focused on the general roles of OSS peer review members. With data mined from both an integrated peer review system and code source repositories, our rich datasets comprise of peer review data that was automatically recorded. Using the Android project as a case study, we describe our extraction methodology, the datasets and their application used for three separate studies. Our datasets are available online at http://sdlab.naist.jp/reviewmining/},
	keywords = {android, case study, code review, data set, peer review, roles, source code},
	author = {Kazuki Hamasaki and Raula Gaikovina Kula and Norihiro Yoshida and A. E. Camargo Cruz and Kenji Fujiwara and Hajimu Iida}
}
@proceedings {1451,
	title = {Exploring the Role of Outside Organizations in Free / Open Source Software Projects},
	volume = {378},
	year = {2012},
	month = {09/2012},
	pages = {201-215},
	publisher = {IFIP AICT},
	abstract = {Free/Open Source Software (FOSS) projects have a reputation for being grass-roots efforts driven by individual contributors volunteering their time and effort. While this may be true for a majority of smaller projects, it is not always the case for large projects. As projects grow in size, importance and complexity, many come to depend on corporations, universities, NGO{\textquoteright}s and governments, for support and contributions, either financially or through seconded staff. As outside organizations get involved in projects, how does this affect their governance, transparency and direction? To study this question we gathered bug reports and commit logs for GCC and the Linux Kernel. We found that outside organizations contribute a majority of code but rarely participate in bug triaging. Therefore their code does not necessarily address the needs of others and may distort governance and direction. We conclude that projects should examine their dependence on outside organizations},
	keywords = {bug reports, commit, Community sustainability, Contributor affiliation, gcc, governance, linux kernel, Participation metrics},
	url = {http://research.engr.oregonstate.edu/hci/sites/research.engr.oregonstate.edu.hci/files/papers/forrest2012exploring.pdf},
	author = {Forrest, Darren and Jensen, Carlos and Mohan, Nitin and Davidson, Jennifer}
}
@proceedings {1476,
	title = {How Can Open Standards Be Effectively Implemented in Open Source? Challenges and the ORIOS Project},
	volume = {378},
	year = {2012},
	month = {09/2012},
	pages = {383-388},
	publisher = {IFIP AICT,  Springer},
	address = {Eighth International Conference on Open Source Systems},
	abstract = {Many organisations are currently restricted in their choice of software because of restrictions imposed by existing systems. Challenges include a lack of interoperability and a risk of technological lock-in, which many small companies seek to address by utilising Open Standards and Open Source implementations of such standards when developing and deploying systems. This paper presents an overview of how the industrial research project ORIOS (Open Source software Reference Implementations of Open Standards) seeks to address identified challenges. An overarching goal of the project is to improve understanding within organisations of Open Standards, Open Source Reference Implementations, and the ecosystems around them. This will be done by developing a reference model of necessary and desirable features of an Open Standard, and how Open Standards and their implementations can be utilised by small companies in different usage contexts. An action case study approach will be used as a core strategy for evolving a reference model together with Swedish companies.},
	author = {Lundell, Bj{\"o}rn and AbduraHmanovic, Admir and Andersson, Stefan and Bergström, Erik and Feist, Jonas and Gamalielsson, Jonas and Gustavsson, Tomas and Kahlbom, Roger and Papaxanthis, Konstantin}
}
@proceedings {1453,
	title = {Open Source Migration in Greek Public Sector: A Feasibility Study},
	volume = {378},
	year = {2012},
	month = {09/2012},
	pages = {233-243},
	publisher = {IFIP AICT},
	abstract = {Open Source software has been recently recognized by governments as a viable and cost effective solution. However, transition to open source is not a plug-and-play process but one that requires deep knowledge of open source dynamics and of organization{\textquoteright}s operations, budgetary constraints, capacities, ethics and political agenda. As with any IT transition, there are uncertainties and risks that need to be handled in order to maximize the gains for the organization and for the society through the provided services. In this paper we present a feasibility study conducted in 15 Greek public sector organizations with the aim to discover the value this transition brings to a typical public sector organization.},
	author = {Mavridis, Androklis and Fotakidis, Dimitrios and Ioannis Stamelos}
}
@proceedings {1447,
	title = {OSS Integration Issues and Community Support: An Integrator Perspective},
	volume = {378},
	year = {2012},
	month = {09/2012},
	pages = {129-143},
	publisher = {IFIP AICT},
	abstract = {The reuse and integration of Open Source Software (OSS) components provided by OSS communities is becoming an economical and strategic need for today{\textquoteright}s organizations. The integration of OSS components provides many benefits, but also risks and challenges. One of the most important risks is the lack of effective and timely OSS community support for dealing with possible integration problems. For gaining an understanding of the common problems that organizations face when integrating OSS components, and the role played by OSS communities, we performed an exploratory study on 25 OSS integration projects from different European organizations. The results show that the main way of reducing integration problems was the use of OSS components from well-established communities; therefore very few integration problems were identified. In most of the cases these problems were successfully solved with the support from the OSS community and/or colleagues. In addition, contrary to the common belief that understanding code from someone else is a hard and undesirable task, some integrators consider OSS code even more understandable than their own code.},
	author = {Ayala, Claudia and Cruzes, Daniela S. and Nguyen, Anh Duc and Conradi, Reidar and Franch, Xavier and Höst, Martin and Ali Babar, Muhammad}
}
@proceedings {1459,
	title = {Perspectives on Code Forking and Sustainability in Open Source Software},
	volume = {378},
	year = {2012},
	month = {09/2012},
	pages = {274-279},
	publisher = {IFIP AICT,  Springer},
	abstract = {The ability to create high-quality software artifacts that are usable over time is one of the essential requirements of the software business. In such a setting, open source software offers excellent opportunities for sustainability. In particular, safeguarding mechanisms against planned obsolescence by any single actor are built into the definition of open source. The most powerful of these mechanisms is the ability to fork the project. In this paper we argue that the possibility to fork serves as the invisible hand of sustainability that ensures that code remains open and that the code that best serves the community lives on. Furthermore, the mere option to fork provides a mechanism for safeguarding against despotic decisions by the project lead, who is thus guided in their actions to consider the best interest of the community.},
	author = {Nyman, Linus and Mikkonen, Tommi and Juho Lindman and Fougère, Martin}
}
@article {1707,
	title = {Time-Based Release Management in Free and Open Source (FOSS) Projects},
	journal = {International Journal of Open Source Software and Processes},
	volume = {4},
	year = {2012},
	month = {31/2012},
	pages = {1 - 19},
	abstract = {As the Free and Open Source (FOSS) concept has
matured, its commercial significance has also
increased, and issues such as quality and
sustainability have moved to the fore. In this study,
we focus on time-based release management in large
volunteer FOSS projects, and reveal how it addresses
quality and sustainability issues. We discuss the
differences between release management in the
traditional software context and contrast it with
FOSS settings. Based on detailed case studies of a
number of prominent FOSS projects, we describe the
move to time-based release management and identify
the factors and criteria necessary for a successful
transition. We also consider the implications for
software development more generally in the current
dynamic Internet-enabled environment.},
	issn = {1942-3934},
	doi = {10.4018/jossp.2012010101},
	url = {http://lero.ie/sites/default/files/Lero-TR-2011-04.pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Lero-TR-2011-04.pdf},
	author = {Martin Michlmayr and Fitzgerald, Brian}
}
@proceedings {1295,
	title = {Aspects of an Open Source Software Sustainable Life Cycle},
	year = {2011},
	month = {10/2011},
	pages = {325-329},
	publisher = {Springer},
	abstract = {In this paper we present a literature overview about OSS sustainability, considering not only financial resources, but also community growth, source code and tools management. Based on these aspects, we define an OSS life cycle that may contribute to OSS projects sustainability.},
	keywords = {Financial Resources, OSS Communities, OSS Sustainability, software maintenance},
	author = {Arantes, Flavia Linhalis and Freire, Fernanda Maria Pereira}
}
@article {1383,
	title = {A comparative study of challenges in integrating Open Source Software and Inner Source Software},
	journal = {Information and Software Technology},
	volume = {53},
	year = {2011},
	month = {12/2011},
	pages = {1319 - 1336},
	abstract = {Context

Several large software-developing organizations have adopted Open Source Software development (OSSD) practices to develop in-house components that are subsequently integrated into products. This phenomenon is also known as {\textquotedblleft}Inner Source{\textquotedblright}. While there have been several reports of successful cases of this phenomenon, little is known about the challenges that practitioners face when integrating software that is developed in such a setting.
Objective

The objective of this study was to shed light on challenges related to building products with components that have been developed within an Inner Source development environment.
Method

Following an initial systematic literature review to generate seed category data constructs, we performed an in-depth exploratory case study in an organization that has a significant track record in the implementation of Inner Source. Data was gathered through semi-structured interviews with participants from a range of divisions across the organization. Interviews were transcribed and analyzed using qualitative data analysis techniques.
Results

We have identified a number of challenges and approaches to address them, and compared the findings to challenges related to development with OSS products reported in the literature. We found that many challenges identified in the case study could be mapped to challenges related to integration of OSS.
Conclusion

The results provide important insights into common challenges of developing with OSS and Inner Source and may help organizations to understand how to improve their software development practices by adopting certain OSSD practices. The findings also identify the areas that need further research.
Highlights

► We performed a case study that has adopted Open Source development practices. ► We studied the challenges encountered and approaches taken by the organization. ► We performed a systematic review to identify challenges related to Open Source. ► We compared the findings from the review to the findings from the case study. ► Most identified challenges could be mapped to the findings from the literature.},
	keywords = {Open Source Software;     Inner Source;     Software development;     Challenges;     Case study;     Empirical studies},
	issn = {09505849},
	doi = {10.1016/j.infsof.2011.06.007},
	url = {http://www.sciencedirect.com/science/article/pii/S095058491100142X},
	author = {Stol, Klaas-Jan and Ali Babar, Muhammad and Avgeriou, Paris and Fitzgerald, Brian}
}
@proceedings {1272,
	title = {Ginga-J: An Open Java-Based Application Environment for Interactive Digital Television Services},
	year = {2011},
	month = {10/2011},
	pages = {34-49},
	publisher = {Springer},
	abstract = {This paper aims to present a Ginga-J{\textquoteright}s reference implementation. Although based on a particular platform, the implementation not only works as a proof of concept, but also raised several issues and difficulties on the software architecture project that should be taken into account to ease extensibility and porting to other platforms. Ginga is the standard middleware for the Brazilian DTV System. Its imperative environment (Ginga-J) is based on new JavaDTV specification and mandatory for fixed terrestrial receptors.},
	author = {Kulesza, Raoni and Lima, Jefferson F.A. and Guedes, Alan L. and Junior, Lucenildo L.A. and Meira, Silvio R.L. and Filho, Guido L.S.}
}
@proceedings {1286,
	title = {Towards Improving OSS Products Selection {\textendash} Matching Selectors and OSS Communities Perspectives},
	year = {2011},
	month = {10/2011},
	pages = {244-258},
	publisher = {Springer},
	abstract = {Adopting third-party software is becoming an economical and strategic need for today organizations. A fundamental part of its successful adoption is the informed selection of products that best fit the organization needs. One of the main current problems hampering selection, specially of OSS products is the vast amount of unstructured, incomplete, evolvable and widespread information about products that highly increases the risks of taking a wrong decision. In this paper, we aim to inform and provide evidence to OSS communities that help them to envisage improvements on their information rendering strategies to satisfy industrial OSS selectors{\textquoteright} needs. Our results are from the matching between the informational needs of 23 OSS selectors from diverse software-intensive organizations, and the in-depth study of 9 OSS communities of different sizes and domains. The results evidenced specific areas of improvement that might help to enhance the industrial OSS selection practice.},
	keywords = {empirical study, information rendering strategy, open source software, selection},
	author = {Ayala, Claudia and Cruzes, Daniela S. and Franch, Xavier and Conradi, Reidar}
}
@inbook {836,
	title = {Collaboration Practices and Affordances in Free/Open Source Software Development},
	booktitle = {Collaborative Software Engineering},
	year = {2010},
	pages = {307-328},
	publisher = {Springer},
	organization = {Springer},
	abstract = {This chapter examines collaborative work practices, development processes, project and community dynamics, and other socio-technical relationships in free and open source software development (FOSSD). It also describes what kinds of collaboration affordances facilitate collaborative work in FOSSD projects. It reviews a set of empirical studies of FOSSD that articulate different levels of analysis. Finally, there is discussion of limitations and constraints in understanding what collaboration practices and affordances arise in FOSSD studies and how they work, and then to emerging opportunities for future FOSSD studies.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/CoSE-Scacchi-Chapter.pdf},
	author = {Walt Scacchi},
	editor = {Finkelstein, A. and van der Hoek, A. and Grundy, J. and Mistr{\'\i}k, I. and Whitehead, J.}
}
@conference {956,
	title = {Mining security changes in FreeBSD},
	booktitle = {2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)},
	year = {2010},
	pages = {90 - 93},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Cape Town, South Africa},
	abstract = {Current research on historical project data is rarely touching on the subject of security related information. Learning how security is treated in projects and which parts of a software are historically security relevant or prone to security changes can enhance the security strategy of a software project. We present a mining methodology for security related changes by modifying an existing method of software repository analysis. We use the gathered security changes to find out more about the nature of security in the FreeBSD project and we try to establish a link between the identified security changes and a tracker for security issues (security advisories). We give insights how security is presented in the FreeBSD project and show how the mined data and known security problems are connected.},
	keywords = {freebsd, msr challenge, security},
	isbn = {978-1-4244-6802-7},
	doi = {10.1109/MSR.2010.5463289},
	author = {Mauczka, Andreas and Schanes, Christian and Fankhauser, Florian and Bernhart, Mario and Grechenig, Thomas}
}
@conference {962,
	title = {OSS developers context-specific Preferred Representational systems: A initial Neurolinguistic text analysis of the Apache mailing list},
	booktitle = {2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)},
	year = {2010},
	pages = {126 - 129},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Cape Town, South Africa},
	abstract = {Open Source Software (OSS) mailing lists are used by developers to discuss software engineering tasks performed in the project. In the last years, researchers have been conducting mailing lists linguistic analyses for understanding the intricacies of OSS development. An unpublished approach for that is to use NeuroLinguistic Theory (NT). NT postulates the use of a Preferred Representational cognitive System (PRS) in specific contexts. This means that different resources and cognitive channels are used by developers in order to understand software, but what types of representational systems are the preferred by software engineers? This paper introduces a psychometrically-based neuro-linguistic analysis tool to classify developers, and presents early results of an experiment to assess the PRS of four top developers against a baseline of the Apache server mailing list.},
	keywords = {apache, email, email archives, mailing lists, neurolinguistics},
	isbn = {978-1-4244-6802-7},
	doi = {10.1109/MSR.2010.5463339},
	author = {Junior, Methanias Colaco and Mendonca, Manoel and Farias, Mario and Henrique, Paulo}
}
@conference {969,
	title = {Validity of network analyses in Open Source Projects},
	booktitle = {2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)2010 7th IEEE Working Conference on Mining Software Repositories (MSR 2010)},
	year = {2010},
	note = {"We have mined archival records of developer mailing lists to generate reply-to social networks for the three OSS projects: Apache, MySQL, and Perl."

"For each of these projects, we construct an information flow network based on messages that are sent as replies to previous messages....We use this methodology on all mined data to create a network of mailing list participants. "},
	pages = {201 - 209},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Cape Town, South Africa},
	abstract = {Social network methods are frequently used to analyze networks derived from Open Source Project communication and collaboration data. Such studies typically discover patterns in the information flow between contributors or contributions in these projects. Social network metrics have also been used to predict defect occurrence. However, such studies often ignore or side-step the issue of whether (and in what way) the metrics and networks of study are influenced by inadequate or missing data. In previous studies email archives of OSS projects have provided a useful trace of the communication and co-ordination activities of the participants. These traces have been used to construct social networks that are then subject to various types of analysis. However, during the construction of these networks, some assumptions are made, that may not always hold; this leads to incomplete, and sometimes incorrect networks. The question then becomes, do these errors affect the validity of the ensuing analysis? In this paper we specifically examine the stability of network metrics in the presence of inadequate and missing data. The issues that we study are: 1) the effect of paths with broken information flow (i.e. consecutive edges which are out of temporal order) on measures of centrality of nodes in the network, and 2) the effect of missing links on such measures. We demonstrate on three different OSS projects that while these issues do change network topology, the metrics used in the analysis are stable with respect to such changes.},
	keywords = {apache, email archives, mailing lists, missing data, mysql, perl, social networks},
	isbn = {978-1-4244-6802-7},
	doi = {10.1109/MSR.2010.5463342},
	attachments = {https://flosshub.org/sites/flosshub.org/files/201NetworkAnalysis.pdf},
	author = {Nia, Roozbeh and Christian Bird and Devanbu, Premkumar and Filkov, Vladimir}
}
@conference {605,
	title = {Assurance Evaluation for OSS Adoption in a Telco Context},
	booktitle = {OSS2009: Open Source Ecosystems: Diverse Communities Interacting (IFIP 2.13)},
	series = {IFIP Advances in Information and Communication Technology },
	volume = {299/2009},
	year = {2009},
	month = {2009///},
	pages = {363 - 363},
	publisher = {Springer},
	organization = {Springer},
	chapter = {37},
	abstract = {Software Assurance (SwA) is a complex concept that involves different stages of a software development process and may be defined differently depending on its focus, as for instance software quality, security, or dependability. In Computer Science, the term assurance is referred to all activities necessary to provide enough confidence that a software product will satisfy its users{\textquoteright} functional and non-functional requirements.
},
	issn = {978-3-642-02031-5},
	doi = {http://dx.doi.org/10.1007/978-3-642-02032-2_37},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Assurance\%20Evaluation\%20for\%20OSS.pdf},
	author = {Ardagna, Claudio and Banzi, Massimo and Damiani, Ernesto and El Ioini, Nabil and Frati, Fulvio}
}
@conference {587,
	title = {Challenges of the Open Source Component Marketplace in the Industry},
	booktitle = {OSS2009: Open Source Ecosystems: Diverse Communities Interacting (IFIP 2.13)},
	series = {IFIP Advances in Information and Communication Technology },
	year = {2009},
	month = {2009///},
	pages = {213 - 224},
	publisher = {Springer},
	organization = {Springer},
	chapter = {19},
	abstract = {The reuse of Open Source Software components available on the Internet is playing a major role in the development of Component Based Software Systems. Nevertheless, the special nature of the OSS marketplace has taken the {\textquotedblleft}classical{\textquotedblright} concept of software reuse based on centralized repositories to a completely different arena based on massive reuse over Internet. In this paper we provide an overview of the actual state of the OSS marketplace, and report preliminary findings about how companies interact with this marketplace to reuse OSS components. Such data was gathered from interviews in software companies in Spain and Norway. Based on these results we identify some challenges aimed to improve the industrial reuse of OSS components.
},
	issn = {978-3-642-02031-5},
	doi = {http://dx.doi.org/10.1007/978-3-642-02032-2_19},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Challenges\%20of\%20the\%20Open\%20Source.pdf},
	author = {Ayala, Claudia and Hauge, {\O}yvind and Conradi, Reidar and Franch, Xavier and Li, Jingyue and Velle, Ketil}
}
@conference {1646,
	title = {An Examination of the Use of Open Source Software Processes as a Global Software Development Solution for Commercial Software Engineering},
	booktitle = {2009 35th Euromicro Conference on Software Engineering and Advanced Applications},
	year = {2009},
	pages = {20 - 27},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Patras, Greece},
	abstract = {This paper outlines the phenomenon of Inner Source software development and places it in the context of existing open source literature. Our study includes an analysis of multiple case studies of Inner Source in use in large scale global software development companies. The lessons learned from these case studies help us to contrast traditional open source principles with Inner Source principles, and we then gather these lessons, to create our preliminary framework, in order to make sense of when and how firms can adopt Inner Source. Our framework helps to make sense of the practical issues of adopting and managing Inner Source. We have highlighted the emerging trends in the Inner Source phenomenon and surrounding areas. Awareness of this may be of great benefit to researchers in the area and industrial practitioners.},
	isbn = {978-0-7695-3784-9},
	doi = {10.1109/SEAA.2009.86},
	author = {Gaughan, Gary and Fitzgerald, Brian and Maha Shaikh}
}
@article {1235,
	title = {Open Source Software Adoption: Anatomy of Success and Failure},
	journal = {International Journal of Open Source Software and Processes},
	volume = {1},
	number = {1},
	year = {2009},
	month = {01/2009},
	pages = {1-23},
	abstract = {Current estimates suggest widespread adoption of open source software (OSS) in organizations worldwide. However, the problematic nature of OSS adoption is readily evidenced in the fairly frequent reports of problems, unforeseen hold-ups, and outright abandonment of OSS implementation over time. Hibernia Hospital, an Irish public sector organization, have embarked on the adoption of a range of OSS applications over several years, some of which have been successfully deployed and remain in live use within the organisation, whereas others, despite achieving high levels of assimilation over a number of years, have not been ultimately retained in live use in the organization. Using a longitudinal case study, we discuss in depth the deployment process for two OSS applications {\textendash} the desktop application suite whose deployment was unsuccessful ultimately, and the email application which was successfully deployed. To our knowledge, this is the first such in-depth study into successful and unsuccessful OSS implementation.},
	keywords = {adoption, project failure, project success},
	doi = {10.4018/jossp.2009010101},
	author = {Fitzgerald, Brian}
}
@conference {588,
	title = {A Survey on Firms{\textquoteright} Participation in Open Source Community Projects},
	booktitle = {OSS2009: Open Source Ecosystems: Diverse Communities Interacting (IFIP 2.13)},
	series = {IFIP Advances in Information and Communication Technology },
	year = {2009},
	month = {2009///},
	pages = {225 - 236},
	publisher = {Springer},
	organization = {Springer},
	chapter = {20},
	abstract = {The role of firms in commercial Open Source projects (e.g., former MySQL, EnterpriseDB, SugarCRM) is a consolidated and generally accepted fact. On other hand, community Open Source projects, which are built upon communities and not directly associated with firms, are commonly perceived to be based mainly on the work of volunteers. Up to now, firms{\textquoteright} role in these projects has been poorly investigated. We conducted a survey on 1,302 SourceForge.net projects to inquire about the level and the typology of involvement of firms. We propose three different models for firm participation and provide empirical evidence on their diffusion in SourceForge.net.
},
	issn = {978-3-642-02031-5},
	doi = {http://dx.doi.org/10.1007/978-3-642-02032-2_20},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Survey\%20on\%20Firns\%27\%20Participation.pdf},
	author = {Capra, Eugenio and Francalanci, Chiara and Merlo, Francesco and Rossi Lamastra, Cristina}
}
@conference {850,
	title = {Two peers are better than one: aggregating peer reviews for computing assignments is surprisingly accurate},
	booktitle = {ACM 2009 International Conference on Supporting Group Work},
	year = {2009},
	month = {05/10/2009},
	pages = {115-124},
	publisher = {Association for Computing Machinery},
	organization = {Association for Computing Machinery},
	address = {Sanibel Island, FL},
	isbn = {978-1-60558-500-0 },
	author = {Reily, K. and Finnerty, P.L. and Terveen, L.}
}
@article {Fang:2009:USP:1554441.1554443,
	title = {Understanding Sustained Participation in Open Source Software Projects},
	journal = {J. Manage. Inf. Syst.},
	volume = {25},
	year = {2009},
	month = {April},
	pages = {9{\textendash}50},
	publisher = {M. E. Sharpe, Inc.},
	address = {Armonk, NY, USA},
	abstract = {Prior research into open source software (OSS) developer participation has emphasized individuals{\textquoteright} motivations for joining these volunteer communities, but it has failed to explain why people stay or leave in the long run. Building upon Lave and Wenger{\textquoteright}s theory of legitimate peripheral participation (LPP), this paper offers a longitudinal investigation of one OSS community in which sustained participation is hypothesized to be associated with the coevolution of two major elements of LPP theory: "situated learning" (the process of acting knowledgeably and purposefully in the world) and "identity construction" (the process of being identified within the community). To test this hypothesis, data were collected from multiple sources, including online public project documents, electronic mail messages, tracker messages, and log files. Results from qualitative analyses revealed that initial conditions to participate did not effectively predict long-term participation, but that situated learning and identity construction behaviors were positively linked to sustained participation. Furthermore, this study reveals that sustained participants distinguished themselves by consistently engaging in situated learning that both made conceptual (advising others) and practical contributions (improving the code). Implications and future research are discussed.},
	keywords = {Communities Of Practice, Legitimate Peripheral Participation, Open Source Projects, Open Source Software Community, Qualitative Study},
	issn = {0742-1222},
	doi = {10.2753/MIS0742-1222250401},
	url = {http://portal.acm.org/citation.cfm?id=1554441.1554443},
	author = {Fang, Yulin and Neufeld, Derrick}
}
@conference {584,
	title = {What Does It Take to Develop a Million Lines of Open Source Code?},
	booktitle = {OSS2009: Open Source Ecosystems: Diverse Communities Interacting (IFIP 2.13)},
	series = {IFIP Advances in Information and Communication Technology },
	volume = {299/2009},
	year = {2009},
	month = {2009///},
	pages = {170 - 184},
	publisher = {Springer},
	organization = {Springer},
	chapter = {16},
	abstract = {This article presents a preliminary and exploratory study of the relationship between size, on the one hand, and effort, duration and team size, on the other, for 11 Free/Libre/Open Source Software (FLOSS) projects with current size ranging between between 0.6 and 5.3 million lines of code (MLOC). Effort was operationalised based on the number of active committers per month. The extracted data did not fit well an early version of the closed-source cost estimation model COCOMO for proprietary software, overall suggesting that, at least to some extent, FLOSS communities are more productive than closed-source teams. This also motivated the need for FLOSS-specific effort models. As a first approximation, we evaluated 16 linear regression models involving different pairs of attributes. One of our experiments was to calculate the net size, that is, to remove any suspiciously large outliers or jumps in the growth trends. The best model we found involved effort against net size, accounting for 79 percent of the variance. This model was based on data excluding a possible outlier (Eclipse), the largest project in our sample. This suggests that different effort models may be needed for certain categories of FLOSS projects. Incidentally, for each of the 11 individual FLOSS projects we were able to model the net size trends with very high accuracy (R 2 >= 0.98). Of the 11 projects, 3 have grown superlinearly, 5 linearly and 3 sublinearly, suggesting that in the majority of the cases accumulated complexity is either well controlled or don{\textquoteright}t constitute a growth constraining factor.
},
	issn = {978-3-642-02031-5},
	doi = {http://dx.doi.org/10.1007/978-3-642-02032-2_16},
	attachments = {https://flosshub.org/sites/flosshub.org/files/What\%20Does\%20it\%20Take\%20to\%20Develop.pdf},
	author = {Fernandez-Ramil, Juan and Izquierdo-Cortazar, Daniel and Mens, Tom}
}
@conference {Hill:2008:AAM:1370750.1370771,
	title = {AMAP: automatically mining abbreviation expansions in programs to enhance software maintenance tools},
	booktitle = {Proceedings of the 2008 international working conference on Mining software repositories},
	series = {MSR {\textquoteright}08},
	year = {2008},
	month = {05/2008},
	pages = {79{\textendash}88},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {When writing software, developers often employ abbreviations in identifier names. In fact, some abbreviations may never occur with the expanded word, or occur more often in the code. However, most existing program comprehension and search tools do little to address the problem of abbreviations, and therefore may miss meaningful pieces of code or relationships between software artifacts. In this paper, we present an automated approach to mining abbreviation expansions from source code to enhance software maintenance tools that utilize natural language information. Our scoped approach uses contextual information at the method, program, and general software level to automatically select the most appropriate expansion for a given abbreviation. We evaluated our approach on a set of 250 potential abbreviations and found that our scoped approach provides a 57\% improvement in accuracy over the current state of the art.},
	keywords = {automatic abbreviation expansion, azureus, itext.net, liferay, maintenance, natural language, openoffice.org, program comprehension, source code, tiger envelopes, tools},
	isbn = {978-1-60558-024-1},
	doi = {http://doi.acm.org/10.1145/1370750.1370771},
	url = {http://doi.acm.org/10.1145/1370750.1370771},
	attachments = {https://flosshub.org/sites/flosshub.org/files/p79-hill.pdf},
	author = {Hill, Emily and Fry, Zachary P. and Boyd, Haley and Sridhara, Giriprasad and Novikova, Yana and Pollock, Lori and Vijay-Shanker, K.}
}
@conference {1206,
	title = {Collecting data from distributed FOSS projects},
	booktitle = {3rd Workshop on Public Data about Software Development (WoPDaSD 2008)},
	year = {2008},
	note = {"We selected three projects from the initial set of projects: Linux 2.6, an operating system kernel, gimp, a graphics program, and Blender, a 3d content creation suite."
"To acquire data from each data source, we wrote special programs based on the earlier prototypes....The first program extracts information from mailing list archives....The second program obtains bug reports from bug tracking systems....The third program obtains source code from network-accessible version control systems and runs metric calculations on it."},
	month = {2009},
	pages = {8-13},
	abstract = {A key trait of Free and Open Source Software (foss) development is its distributed nature. Nevertheless, two project-level operations, the fork and the merge of program code, are among the least well understood events in the lifespan of a foss project. Some projects have explicitly adopted these operations as the primary means of concurrent development. In this study, we examine the effect of highly distributed software development, as found in the Linux kernel project, on collection and modelling of software development data. We find that distributed development calls for sophisticated temporal modelling techniques where several versions of the source code tree can exist at once. Attention must be turned towards the methods of quality assurance and peer review that projects employ to manage these parallel source trees. Our analysis indicates that two new metrics, fork rate and merge rate, could be useful for determining the role of distributed version control systems in foss projects. The study 
presents a preliminary data set consisting of version control and mailing list data. },
	keywords = {bitkeeper, bug tracking system, cvs, distributed, email archive, fork rate, git, life cycle, linux, linux kernel, mailing list, merge rate, subversion, svn, version control},
	attachments = {https://flosshub.org/sites/flosshub.org/files/fagerholm.pdf},
	author = {Fagerholm, Fabian and Taina, Juha}
}
@conference {542,
	title = {Empirical Analysis of the Bug Fixing Process in Open Source Projects},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {187 - 196},
	publisher = {Springer},
	organization = {Springer},
	chapter = {15},
	abstract = {Monitoring the performance of processes is often considered critical in classic engineering fields. However, in the area of software engineering (and especially in the Open Source context) it seems that the literature has not yet taken into consideration the problem of identifying the process characteristics and performance of debugging. The aim of this paper is the identification of the performance characteristics of the bug fixing process of Open Source applications, focusing on continuity and efficiency indicators. The importance of such indicators is even more relevant today, since Open Source software is now adopted also in many business contexts. We have analyzed the debugging process of 9 active and popular Open Source projects, collecting a dataset comprising more than 65,000 closed bugs. Results have highlighted four types of bug fixing processes that can be distinguished by considering temporal continuity and efficiency dimensions.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_15},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Empirical\%20Analysis\%20of\%20the\%20Bug\%20Fixinf\%20Process.pdf},
	author = {Francalanci, Chiara and Merlo, Francesco}
}
@article {1100,
	title = {An Empirical Study on the Relationship Between Software Design Quality, Development Effort and Governance in Open Source Projects},
	journal = {IEEE Transactions on Software Engineering},
	volume = {34},
	year = {2008},
	note = {"empirical data from a sample of 75 major OS projects"
no PDF to confirm [ms]},
	month = {11/2008},
	pages = {765 - 782},
	abstract = {The relationship among software design quality, development effort, and governance practices is a traditional research problem. However, the extent to which consolidated results on this relationship remain valid for open source (OS) projects is an open research problem. An emerging body of literature contrasts the view of open source as an alternative to proprietary software and explains that there exists a continuum between closed and open source projects. This paper hypothesizes that as projects approach the OS end of the continuum, governance becomes less formal. In turn a less formal governance is hypothesized to require a higher-quality code as a means to facilitate coordination among developers by making the structure of code explicit and facilitate quality by removing the pressure of deadlines from contributors. However, a less formal governance is also hypothesized to increase development effort due to a more cumbersome coordination overhead. The verification of research hypotheses is based on empirical data from a sample of 75 major OS projects. Empirical evidence supports our hypotheses and suggests that software quality, mainly measured as coupling and inheritance, does not increase development effort, but represents an important managerial variable to implement the more open governance approach that characterizes OS projects which, in turn, increases development effort.},
	keywords = {effort estimation, governance, quality, source code},
	issn = {0098-5589},
	doi = {10.1109/TSE.2008.68},
	author = {Capra, E. and Francalanci, C. and Merlo, F.}
}
@article {10.1109/TSE.2008.68,
	title = {An Empirical Study on the Relationship Between Software Design Quality, Development Effort and Governance in Open Source Projects},
	journal = {IEEE Transactions on Software Engineering},
	volume = {34},
	year = {2008},
	note = {supplemental material attached},
	pages = {765-782},
	publisher = {IEEE Computer Society},
	address = {Los Alamitos, CA, USA},
	abstract = {The relationship among software design quality, development effort, and governance practices is a traditional research problem. However, the extent to which consolidated results on this relationship remain valid for open source (OS) projects is an open research problem. An emerging body of literature contrasts the view of open source as an alternative to proprietary software and explains that there exists a continuum between closed and open source projects. This paper hypothesizes that as projects approach the OS end of the continuum, governance becomes less formal. In turn a less formal governance is hypothesized to require a higher-quality code as a means to facilitate coordination among developers by making the structure of code explicit and facilitate quality by removing the pressure of deadlines from contributors. However, a less formal governance is also hypothesized to increase development effort due to a more cumbersome coordination overhead. The verification of research hypotheses is based on empirical data from a sample of 75 major OS projects. Empirical evidence supports our hypotheses and suggests that software quality, mainly measured as coupling and inheritance, does not increase development effort, but represents an important managerial variable to implement the more open governance approach that characterizes OS projects which, in turn, increases development effort.},
	issn = {0098-5589},
	doi = {http://doi.ieeecomputersociety.org/10.1109/TSE.2008.68},
	attachments = {https://flosshub.org/sites/flosshub.org/files/tts2008060765s.pdf},
	author = {Capra, Eugenio and Francalanci, Chiara and Merlo, Francesco}
}
@conference {551,
	title = {Extracting Generally Applicable Patterns from Object-Oriented Programs for the Purpose of Test Case Creation},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {281 - 287},
	publisher = {Springer},
	organization = {Springer},
	chapter = {24},
	abstract = {This paper presents an experiment performed on three large open source applications. The applications were instrumented automatically with a total of 10,494 instrumentation points. The purpose of the instrumentation was to collect and store data during the execution of each application that later could be analyzed off-line. Data analysis, on the collected data, allowed for the creation of test cases (test data, test fixtures and test evaluators) in addition to finding object message patterns for object-oriented software.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_24},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Extracting\%20Generally\%20Applicable\%20Patterns.pdf},
	author = {Torkar, Richard and Feldt, Robert and Gorschek, Tony}
}
@conference {Twidale2008,
	title = {Infrastructures From the Bottom-Up and the Top-Down: Can They Meet in the Middle?},
	booktitle = {Proceedings PDC 2008},
	year = {2008},
	pages = {238-241},
	abstract = {Based on a study of participatory design in the development of cyberinfrastructure involving the rapid composition of open source software and web services, we consider cases where researchers create their own ad hoc infrastructures out of available software. We compare "top- down" and "bottom-up" cyberinfrastructure development and speculate on whether the two approaches can be productively combined.},
	author = {Twidale, M.B and Floyd, I.R.}
}
@proceedings {813,
	title = {Infrastructures From the Bottom-Up and the Top-Down: Can They Meet in the Middle?},
	year = {2008},
	pages = {238-241.},
	abstract = {Based on a study of participatory design in the development of cyberinfrastructure involving the rapid composition of open source software and web services, we consider cases where researchers create their own ad hoc infrastructures out of available software. We compare "top- down" and "bottom-up" cyberinfrastructure development and speculate on whether the two approaches can be productively combined.},
	url = {http://hdl.handle.net/2142/9526},
	author = {Twidale, M.B and Floyd, I.R.}
}
@conference {bird2008lss,
	title = {{Latent Social Structure in Open Source Projects}},
	booktitle = {SIGSOFT {\textquoteright}08/FSE-16: Proceedings of the 16th ACM SIGSOFT Symposium on Foundations of Software Engineering},
	year = {2008},
	note = {We first identified the projects of interest and mined the developer mailing list archives and source code repositories of each of the projects. Next, we filtered the mailing list messages and created a social network of the participants over 3-month intervals. We then calculated the community structure of each social network. Following that, the relevance of the divisions of participants was evaluated quantitatively using mined source code development data and qualitatively by manual methods.},
	pages = {24{\textendash}35},
	publisher = {ACM},
	organization = {ACM},
	abstract = {Commercial software project managers design project organizational structure carefully, mindful of available skills, division of labour, geographical boundaries, etc. These organizational {\textquotedblleft}cathedrals{\textquotedblright} are to be contrasted with the "bazaar-like" nature of Open Source Software (OSS) Projects, which have no pre-designed organizational structure. Any structure that exists is dynamic, self-organizing, latent, and usually not explicitly stated. Still, in large, complex, successful, OSS projects, we do expect that subcommunities will form spontaneously within the developer teams. Studying these subcommunities, and their behavior can shed light on how successful OSS projects self-organize. This phenomenon could well hold important lessons for how commercial software teams might be organized. Building on known well-established techniques for detecting community structure in complex networks, we extract and study latent subcommunities from the email social network of several projects: Apache HTTPD, Python, PostgresSQL, Perl, and Apache ANT. We then validate them with software development activity history. Our results show that subcommunities do indeed spontaneously arise within these projects as the projects evolve. These subcommunities manifest most strongly in technical discussions, and are significantly connected with collaboration behaviour.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/bird2008lss.pdf},
	author = {Christian Bird and David Pattison and Raissa D{\textquoteright}Souza and Filkov, Vladimir and Devanbu, Premkumar}
}
@conference {530,
	title = {Mapping Linux Security Targets to Existing Test Suites},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {29 - 45},
	publisher = {Springer},
	organization = {Springer},
	chapter = {3},
	abstract = {The Common Criteria standard provides an infrastructure for evaluating security functions of IT products and for certifying that security policies claimed by product suppliers are correctly enforced by the security functions themselves. Certifying Open Source software (OSS) can pave the way to OSS adoption in a number of security-conscious application environments. Recent experiences in certifying Linux distributions has pointed out the problem of finding a mapping between descriptions of OSS security functions and existingtest suites developed independently, such as the Linux Test Project. In this paper, we describe a mechanism, based on matching techniques, which semiautomatically associates security functions to existing test suite such as the ones developed by Open Source communities.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_3},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Mapping\%20Linux\%20Security\%20Targets.pdf},
	author = {Ardagna, C. and Damiani, E. and Ioini, N. and Frati, F. and Giovannini, P. and Tchokpon, R.}
}
@article {499,
	title = {The Material and Social Dynamics of Motivation: Contributions to Open Source Language Technology Development},
	journal = {Science Studies},
	number = {2},
	year = {2008},
	note = {"I conducted a two-phased qualitative analysis on multiple data (thematic phone-inter- views, notes from OpenOffice.org conference 2004 meetings, historical documents, mailing list discussions, homepages, Google, blogs, real-time video and audio presentations from OpenOffice.org conference 2005)."},
	abstract = {Volunteer motivation has been a central theme in Free/Libre/Open Source Software (FLOSS) literature. This research has been largely dominated by economists who rely in their surveys on the distinction between intrinsic and extrinsic motivations and the "hacker ethic" for profit juxtaposition. The paper argues that survey-based analytical frameworks and research designs have led to a focus on some motivational attributions at the expense of others. It then presents a case study that explores dynamic, non individualistic and content-sensitive aspects of motivations. The approach is based on socio-cultural psychology and the author{\textquoteright}s observations of a hybrid firm-community FLOSS project, OpenOffice.org. Instead of separating intrinsic motivations from extrinsic ones, it is argued that complex and changing patterns of motivations are tied to changing objects and personal histories prior to and during participation. The boundary between work and hobby in an individual{\textquoteright}s participation path is blurred and shifting.},
	keywords = {contributions, developers, email, email archives, mailing list, MOTIVATION, openoffice, openoffice.org, secondary data, Volunteers},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Freeman.pdf},
	author = {Stephanie Freeman}
}
@conference {flosswp402,
	title = {The motivational arc of massive virtual collaboration},
	booktitle = {IFIP WG 9.5, International Working Conference on Virtuality and Society: Massive Virtual Communities},
	year = {2008},
	month = {February},
	pages = {1{\textendash}13},
	abstract = {Massive virtual collaborations (MVC) involve large numbers of mostly unpaid contributors collectively creating new content. Wikipedia is the most dramatic example of MVC; smaller-scale examples include contributors to blogs and discussion groups and teams of programmers and users developing free/libre open source software (FLOSS). In this paper, we propose a model of motivations for contribution to MVC that integrates various theoretical perspectives. The model extends prior work by distinguishing three different levels of contribution to projects (initial, sustained and meta) and by capturing the dynamic and recursive effects of contributions on emergent individual and project states.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/crowston_fagnot_ifip.pdf},
	author = {Kevin Crowston and Isabelle Fagnot}
}
@conference {553,
	title = {The Networked Forge: New Environments for Libre Software Development},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {299 - 306},
	publisher = {Springer},
	organization = {Springer},
	chapter = {26},
	abstract = {Libre (free, open source) software forges (sites hosting the development infrastructure for a collection of projects) have been stable in architecture, services and concept since they become popular during the late 1990s. During this time several problems that cannot be solved without dramatic design changes have become evident. To overcome them, we propose a new concept, the {\textquotedblleft}networked forge{\textquotedblright}, focused on addressing the core characteristics of libre software development and the needs of developers. The key of this proposal is to re-engineer forges as a net of distributed components which can be composed and configured according to the needs of users, using a combination of web 2.0, semantic web and mashup technologies. This approach is flexible enough to accommodate different development processes, while at the same time interoperates with current facilities.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_26},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Networked\%20Forge.pdf},
	author = {Gonzalez-Barahona, Jesus and Mart{\'\i}nez, Andr{\'e}s and Polo, Alvaro and Hierro, Juan and Reyes, Marcos and Soriano, Javier and Fern{\'a}ndez, Rafael}
}
@conference {568,
	title = {Open Source Environments for Collaborative Experiments in e-Science},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {415 - 416},
	publisher = {Springer},
	organization = {Springer},
	chapter = {41},
	abstract = {Open Source Software (OSS) for e-Science should make reference to the paradigm of a distributed surrounding over a multi system mix of Web Services and Grid technologies, allowing data exchanging through services, according to standards in the area of the Grid and of Service Oriented Computing (SOC). In fact, biologists, medical doctors, and scientists are often involved in time consuming experiments and are aware of the degree of difficulty in validating or rejecting a given hypothesis by lab experiments. The benefits of OSS for e-Science consider that as many operating nodes as possible can work cooperatively sharing data, resources, and software, thus avoiding the bottleneck of licenses for distributed use of tools needed to perform cooperative scientific experiments. In particular, this chapter presents an architecture based on nodes equipped with a Grid and with Web Services in order to access OSS, showing how scientific experiments can be enacted through the use of a cooperation among OSS sites. Such a choice, besides reducing the cost of the experiments, would support distributed introduction of OSS among other actors of the dynamical networks, thus supporting the awareness about OSS and their diffusion. An OSS environment for cooperative scientific experiments (e-experiments) can effectively support the distributed execution of different classes of experiments, from visualization to model identification through clustering and rules generation, in various application fields, such as bioinformatics, neuro-informatics, tele-monitoring,or drug discovery. By applying Web Services and Grid computing, an experiment or a simulation can be executed in a cooperative way on various computation nodes of a network equipped with OSS, allowing data exchange among researchers. Our environment  formalizes experiments as cooperative services on various computational nodes of a grid network. Basic elements are models, languages, and support tools creating a virtual
network of organizational responsibility of the global experiments, according to rules under which each node can execute local services to be accessed by other nodes in order to achieve the whole experiment{\textquoteright}s results.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_41},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Open\%20Source\%20Environments.pdf},
	author = {Bosin, Andrea and Dess{\'\i}, Nicoletta and Fugini, Maria and Liberati, Diego and Pes, Barbara}
}
@conference {567,
	title = {Panel: Opportunities and Risks for Open Source Software in Industry},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {413 - 414},
	publisher = {Springer},
	organization = {Springer},
	chapter = {40},
	abstract = {Open Source Software (OSS) is a multi-faceted phenomenon which has become an issue of strategic importance for many commercial organisations. Stemming from an ideological issue, with emphasis on freedom and community values, we have recently seen a broader interest in the Open Source phenomenon amongst practitioners in many companies. A number of SMEs and large companies are currently exploring the potential of Open Source, and for some it has become core to their business and development activities.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_40},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Panel\%20Opportunities\%20\%26\%20Risks.pdf},
	author = {Feller, Joseph and Lundell, Bj{\"o}rn and Marttiin, Pentti and Walt Scacchi and Schellingerhout, Nico}
}
@conference {532,
	title = {PMLite: An Open Source Solution for Process Monitoring},
	booktitle = {OSS2008: Open Source Development, Communities and Quality (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	volume = {275/2008},
	year = {2008},
	month = {2008///},
	pages = {57 - 68},
	publisher = {Springer},
	organization = {Springer},
	chapter = {5},
	abstract = {Process Monitoring represents a big challenge for organizations that aim to manage software projects adopting different development paradigms. In fact, across-process enterprise-level measurement campaigns can be difficult to enact since process attributes to retrieve are semantically diverse and may be difficult to integrate. In this paper, we present PMLite (Process Monitoring Lite) an open source solution to this problem. PMLite is based on an open metamodel and paves the way to the definition of ad-hoc open monitoring frameworks.
},
	issn = {978-0-387-09683-4},
	doi = {http://dx.doi.org/10.1007/978-0-387-09684-1_5},
	attachments = {https://flosshub.org/sites/flosshub.org/files/PMLite.pdf},
	author = {Colombo, Alberto and Damiani, Ernesto and Frati, Fulvio}
}
@article {flosswp362,
	title = {An Analysis of Involvement of HCI Experts in Distributed Software Development: Practical Issues},
	year = {2007},
	month = {July},
	abstract = {Abstract. Traditionally, free and open source software (F/OSS) developers have focused more on the features of a specific application, most of the time ignoring the necessity of user-centric design. This has mainly stemmed from the fact that developers have little interaction with HCI studies, knowledge bases and reports. Moreover, the lack of user interface designers has resulted in a lack of awareness of this area. As a consequence, the user centric design phenomenon within F/OSS applications has been neglected. In this paper, we have mentioned various problems that would slow down a F/OSS project development towards a user-engineered software, and investigated the ways that HCI experts and developers interact with each other and researched bug reporting systems by means of eligibility to issue usability bugs. For the conclusion part, we have explored possible ways to achieve a user-centric design in a project with asynchronous interaction among geographically distributed developers.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/cetin-verzulli-sandra},
	author = {G{\"o}rkem {\c C}etin and Damiano Verzulli and Sandra Frings}
}
@conference {649,
	title = {Benefits and Drawbacks of Open Source Software: An Exploratory Study of Secondary Software Firms},
	booktitle = {OSS2007: Open Source Development, Adoption and Innovation (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing },
	volume = {234/2007},
	year = {2007},
	month = {2007///},
	pages = {307 - 312},
	publisher = {Springer},
	organization = {Springer},
	chapter = {33},
	abstract = {Much of the assessment of OSS benefits and drawbacks has been based on anecdotal evidence appearing in practitioner publications, white papers, web articles etc. To a greater extent this research has tended to concentrate more on the technical benefits and drawbacks of OSS rather than their business counterparts. Furthermore, public administrations and companies operating within the primary software sector have traditionally been the focus for research on OSS benefits and drawbacks. Taking the viewpoint of IS/IT managers in 13 companies operating in the secondary software sector in Europe, this paper examines their experiences of the benefits/drawbacks of OSS.
},
	issn = {978-0-387-72485-0},
	doi = {http://dx.doi.org/10.1007/978-0-387-72486-7_33},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Benefits\%20and\%20Drawbacks.pdf},
	author = {Morgan, Lorraine and Finnegan, Patrick}
}
@article {flosswp327,
	title = {An Empirical Investigation of Code Contribution, Communication Participation and Release Strategies in Open Source Software Development: A Conditional Hazard Model Approach},
	year = {2007},
	month = {January},
	abstract = {This study uses data from over 200 open source software (OSS) projects hosted at Sourceforge to empirically examine how OSS development characteristics affect project progress. Consistent with prior studies, we find that core developers (i.e., top 20 \% of the most contributing developers) develop about 80\% of the code. We also find that a group of developers that is about 50\% larger than the core group is responsible for 80\% of the communication. On average, the top 30\% developers contribute about 81\% of the messages. It is observed that projects with a clearly identified core group of developers conducting most of the coding are more efficient for project progress. We also find that highly participative peripheral group in communication positively affects project progress. In addition, high level of communication interactivity, measured by the number of email threads and average thread depth, enables a project to progress well. Our results also show that projects that draw upon the larger OSS community for beta testing progress faster. We find that the projects that do not progress well are associated with the following major factors: (i) lack of a core developer group, (ii) dormant peripheral group in communication, (iii) low communication interactivity exemplified by the lack of depth in threaded communications, and (iv) over-dependence on internal community for beta testing.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/singh_fan_tan.pdf},
	author = {Param Vir Singh and Ming Fan and Yong Tan}
}
@conference {669,
	title = {FOCSE: An OWA-based Evaluation Framework for OS Adoption in Critical Environments},
	booktitle = {OSS2007: Open Source Development, Adoption and Innovation (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing },
	volume = {234/2007},
	year = {2007},
	pages = {3-16},
	publisher = {Springer},
	organization = {Springer},
	chapter = {1},
	abstract = {While the vast majority of European and US companies increasingly use open source software for non-key applications, a much smaller number of companies have deployed it in critical areas such as security and access control. This is partly due to residual difficulties in performing and documenting the selection process of open source solutions. In this paper we describe the FOCSE metrics framework, supporting a specific selection process for security-related open source code. FOCSE is based on a set of general purpose metrics suitable for evaluating open source frameworks in general; however, it includes some specific metrics expressing security solutions{\textquoteright} capability of responding to continuous change in threats. We show FOCSE at work in two use cases about selecting two different types of security-related open source solutions, i.e. Single Sign-On and Secure Shell applications.
 },
	issn = {978-0-387-72485-0},
	doi = {http://dx.doi.org/10.1007/978-0-387-72486-7_1},
	attachments = {https://flosshub.org/sites/flosshub.org/files/FOCSE\%20\%20an\%20\%20OWA.pdf},
	author = {Ardagna, Claudio and Damiani, Ernesto and Frati, Fulvio}
}
@article {flosswp380,
	title = {Information Policies and Open Source Software in Developing Countries},
	journal = {Journal of American Society of Information Science and Technology},
	volume = {58},
	number = {1},
	year = {2007},
	month = {January},
	pages = {121{\textendash}132},
	abstract = {Many authors propose that open source software (OSS) is a good strategy to bring information and communication technologies to developing countries. Nevertheless, the use of OSS needs to be more than just adopting Linux as the standard for operating systems. Adoption of OSS is not only a choice of software, but also a means of acquiring knowledge. Developing countries have to use OSS as a way to gain knowledge about the technology itself and as a way of creating technology products that fit their specific needs. In this article, the authors introduce a model of OSS based on its essential characteristics to understand how developing countries may use OSS to achieve their development goals. The authors argue that there are two defining properties of any open source software. The first property is the potential for shared conceptualization and the second is the potential for modularity. By assessing how each OSS project satisfies these two conditions, a taxonomy is built for open source projects. This taxonomy will help the development of more sensible policies to promote the use of open source in developing countries.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/camara_fonseca_OSS_developing_countries.pdf},
	author = {Gilberto C{\^a}mara and Frederico Fonseca}
}
@article {flosswp329,
	title = {Information Policies and Open Source Software in Developing Countries},
	year = {2007},
	month = {January},
	abstract = {Many authors propose that open source software (OSS) is a good strategy to bring information and communication technologies to developing countries. Nevertheless, the use of OSS needs to be more than just adopting Linux as the standard for operating systems. Adoption of OSS is not only a choice of software, but also a means of acquiring knowledge. Developing countries have to use OSS as a way to gain knowledge about the technology itself and as a way of creating technology products that fit their specific needs. In this article, the authors introduce a model of OSS based on its essential characteristics to understand how developing countries may use OSS to achieve their development goals. The authors argue that there are two defining properties of any open source software. The first property is the potential for shared conceptualization and the second is the potential for modularity. By assessing how each OSS project satisfies these two conditions, a taxonomy is built for open source projects. This taxonomy will help the development of more sensible policies to promote the use of open source in developing countries.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/camara_fonseca_jasist_oss_submission_jan06.pdf},
	author = {Gilberto C{\^a}mara and Frederico Fonseca}
}
@conference {657,
	title = {Legal issues for free and open source software in government},
	booktitle = {OSS2007: Open Source Development, Adoption and Innovation (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing },
	volume = {234/2007},
	year = {2007},
	month = {2007///},
	pages = {353 - 354},
	publisher = {Springer},
	organization = {Springer},
	chapter = {41},
	abstract = {As more governments begin to adopt and release free and open source software, it is important to be able to readily recognise and identify the associated legal risks and potential liabilities. This panel will examine and discuss the most common of these associated risks and liabilities. These issues include, but are not limited to: 

  indemnities against claims of intellectual property  infringement from third parties
  requirements of consumer protection and antitrust legislation
  obligations to redistribute source, and when they arise
  enforceability of free software licences
  layering and combining of licences
  dual-licensing
  licence incompatibility
  software patent liability
  contemporary developments in software licensing
},
	issn = {978-0-387-72485-0},
	doi = {http://dx.doi.org/10.1007/978-0-387-72486-7_41},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Legal\%20Issues\%20for\%20Free\%20and\%20OSS.pdf},
	author = {Nic Suzor and Fitzgerald, Brian and Perry, Mark}
}
@article {flosswp378,
	title = {Love and other demons: game theory in enterpreneurial and love relationships},
	year = {2007},
	month = {December},
	abstract = {The article studies the risk aversion and information assymetry differences in two fields of relationships: between partners and in a loving couple.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/ARTICULO_1-del_amor_y_otros_demonios-_teoria_de_juegos_en_las_relaciones_empresariales_y_amorosas.pdf},
	author = {Guillermo Flores and Alejandro Mendighetti and Jorge S{\'a}nchez}
}
@conference {618,
	title = {Open Source Collaboration for Fostering Off-The-Shelf Components Selection},
	booktitle = {OSS2007: Open Source Development, Adoption and Innovation (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing },
	volume = {234/2007},
	year = {2007},
	month = {2007///},
	pages = {17 - 30},
	publisher = {Springer},
	organization = {Springer},
	chapter = {2},
	abstract = {The use of Off-The-Shelf software components in Component- Based Development implies many challenges. One of them is the lack of available and well-suited data to support selection of suitable OTS components. This paper proposes a feasible and incremental way to federate and reuse the different efforts for finding, selecting, and maintaining OTS components in a structured way. This is done not only for supporting OTS components selection, but also to overcome reported problems with the integration and maintenance of component repositories. It is based on the {\textquotedblleft}open source collaboration{\textquotedblright} idea to incrementally build an OTS components reuse infrastructure, enabling automatic support for OTS selection processes.
},
	issn = {978-0-387-72485-0},
	doi = {http://dx.doi.org/10.1007/978-0-387-72486-7_2},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Open\%20Source\%20Collaboration.pdf},
	author = {Ayala, Claudia and S{\o}ensen, Carl-Fredrik and Conradi, Reidar and Franch, Xavier and Li, Jingyue}
}
@article {springerlink:10.1007/s10368-007-0086-4,
	title = {Open source software: Motivation and restrictive licensing},
	journal = {International Economics and Economic Policy},
	volume = {4},
	year = {2007},
	note = {"We employ a unique data set consisting of 71 open source projects hosted at the SourceForge web site. The 71 projects in the sample were chosen (in January 2000)"
"This sample was observed over an 18-month period from January 2002 through the middle of 2003, with data collected at 2-month intervals."
"We are grateful to NERA for providing us with the data."
"Although we only have data on a relatively small sample of the projects hosted SourceForge, the sample is unique because of data on lines of code as well as data on different versions of the program. The latter is a potentially important control variable, since a change in version may necessitate additional lines of code.
Our data set contains information on the size of the open source projects in the form of source lines of code (SLOC). Using SLOC as a performance measure is not always ideal; nevertheless, this performance measure is employed in the profession and the literature.15 For our purposes, SLOC is in fact an ideal measure, because we want to measure the effort that is put into the project, rather than whether a project succeeds."
},
	pages = {209-225},
	publisher = {Springer Berlin / Heidelberg},
	abstract = {Open source software (OSS) is an economic paradox. Development of open source software is often done by unpaid volunteers and the source code is typically freely available. Surveys suggest that status, signaling, and intrinsic motivations play an important role in inducing developers to invest effort. Contribution to an OSS project is rewarded by adding one{\textquoteright}s name to the list of contributors which is publicly observable. Such incentives imply that programmers may have little incentive to contribute beyond the threshold level required for being listed as a contributor. Using a unique data set we empirically examine this hypothesis. We find that the output per contributor in open source projects is much higher when licenses are less restrictive and more commercially oriented. These results indeed suggest a status, signaling, or intrinsic motivation for participation in OSS projects with restrictive licenses.},
	keywords = {contributions, contributors, developers, incentives, license analysis, licenses, lines of code, loc, MOTIVATION, restrictive, scm, size, status, version history},
	issn = {1612-4804},
	url = {http://dx.doi.org/10.1007/s10368-007-0086-4},
	author = {Fershtman, Chaim and Gandal, Neil}
}
@article {ford2007open,
	title = {Open vs. closed: which source is more secure?},
	journal = {Queue},
	volume = {5},
	number = {1},
	year = {2007},
	pages = {32{\textendash}38},
	publisher = {ACM},
	abstract = {There is no better way to start an argument among a group of developers than proclaiming Operating System A to be {\textquotedblleft}more secure{\textquotedblright} than Operating System B. I know this from first-hand experience, as previous papers I have published on this topic have led to reams of heated e-mails directed at me{\textemdash}including some that were, quite literally, physically threatening. Despite the heat (not light!) generated from attempting to investigate the relative security of different software projects, investigate we must.

Understanding why products are (and are not) secure is a critical stepping stone toward building better software.

Before wading into these dangerous waters, we should clarify the question. All too often when comparing open and closed source approaches, the question is unconsciously interpreted as Windows versus Linux. While that{\textquoteright}s a fantastic question to knock around, doing so is a very narrow way of looking at the world, as it ignores many other projects in both the open and closed source worlds. Although it{\textquoteright}s foolish to ignore the data points the Windows/Linux world provides, they are simply examples of the process. So, let us first strip away the misconception that the question is about these particular platforms and recognize its real breadth.

With this in mind, our answer requires three crucial definitions in order to have meaning: {\textquotedblleft}What is open source?{\textquotedblright}; {\textquotedblleft}What is closed source?{\textquotedblright}; and, surprisingly, {\textquotedblleft}What is security?{\textquotedblright} The first two we can deal with quickly; the third is a lot subtler, however, so we shall tackle it first.},
	url = {http://queue.acm.org/detail.cfm?id=1217267},
	attachments = {https://flosshub.org/sites/flosshub.org/files/p32-ford.pdf},
	author = {Ford, Richard}
}
@inbook {812,
	title = {Patchworks of Open-Source Software: High-Fidelity Low-cost Prototypes. },
	booktitle = {The Handbook of Research on Open Source Software. },
	year = {2007},
	pages = {126-140.},
	publisher = {Idea Group, Inc.},
	organization = {Idea Group, Inc.},
	author = {Jones, M.C. and Floyd, I.R. and Twidale, M.B}
}
@conference {884,
	title = {Recommenders Everywhere: The WikiLens Community-Maintained Recommender System},
	booktitle = {Wikisym 2007},
	year = {2007},
	address = {Montreal, Quebec, Canada},
	isbn = {978-1-59593-861-9},
	author = {Dan Frankowski and Shyong K. Lam and Shilad Sen and Harper, F. Maxwell and Scott Yilek and Michael Cassano and John Riedl}
}
@article {64,
	title = {Study~of~Available~Tools },
	year = {2007},
	institution = {FLOSSmetrics},
	type = {EU Framework deliverable},
	isbn = {D1.1},
	url = {http://flossmetrics.org/sections/deliverables/docs/deliverables/WP1/D1.1- Study_of_Available_Tools.pdf},
	author = {Antoniades, Ionannis~ and Samoladas, Ioannis and Sowe, Sulayman K. and Gregorio Robles and Koch, Stefan and Fraczek, Ksenia and Hadzisalihovic, Anis}
}
@conference {874,
	title = {Talk Amongst Yourselves: Inviting Users to Participate in Online Conversations.},
	booktitle = {International Conference on Intelligent User Interfaces  },
	series = {Proceedings of the 12th international conference on Intelligent user interfaces},
	year = {2007},
	month = {28/01/2007},
	pages = {62-71},
	publisher = {ACM},
	organization = {ACM},
	address = {Honolulu, Hawaii},
	isbn = {1-59593-481-2},
	author = {F. Harper and D. Frankowski and Drenner, S. and Y. Ren and S. Kiesler and Terveen, L. and Kraut, R. and Riedl, J.}
}
@conference {807,
	title = {Web Mash-ups and Patchwork Prototyping: User-driven technological innovation with Web 2.0 and Open Source Software},
	booktitle = {2007 40th Annual Hawaii International Conference on System Sciences (HICSS{\textquoteright}07)2007 40th Annual Hawaii International Conference on System Sciences (HICSS{\textquoteright}07)},
	year = {2007},
	pages = {86 - 86},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Waikoloa, HI, USA},
	abstract = {The recent emergence of web mash-ups and open
source software is driving the development of new
practices in software and systems development. In this
paper we explore novel practices of user-driven
innovation through an examination of several case
studies which illustrate how users and developers are
exploiting the proliferation of open APIs and open
source systems. Developers can rapidly create proofs
of concept that are robust enough for actual use by
combining preexisting software components. The
underlying programming processes involved make use
of tried-and-true software development techniques,
and may not appear innovative at first. However, the
application of these practices and techniques to
problem solving by non-programmers shows a high
degree of creative innovation, giving rise to new ways
of thinking about technology design and production.},
	isbn = {0-7695-2755-8},
	issn = {1530-1605},
	doi = {10.1109/HICSS.2007.612},
	author = {Floyd, I.R. and Jones, M.C. and Rathi, D. and Twidale, M.B}
}
@conference {679,
	title = {Adopting Open Source for Mission-Critical Applications: A Case Study on Single Sign-On},
	booktitle = {OSS2006: Open Source Systems (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	year = {2006},
	pages = {209 - 220},
	publisher = {Springer},
	organization = {Springer},
	abstract = {In this paper, we describe a specific selection process for security-related open source code, based on a methodology aimed at evaluating open source security frameworks in general and Single-Sign-On (SSO) systems in particular. Our evaluation criteria for open source security-related software include the community{\textquoteright}s timeliness of reaction against newly discovered vulnerabilities or incidents.
},
	doi = {http://dx.doi.org/10.1007/0-387-34226-5_21},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Adapting\%20OS\%20for\%20Mission-critical\%20Applications.pdf},
	author = {Ardagna, Claudio and Damiani, Ernesto and Frati, Fulvio and Reale, Salvatore}
}
@conference {887,
	title = {Because I Carry My Cell Phone Anyway: Functional Location-Based Reminder Applications},
	booktitle = {ACM SIGCHI Conference on Human Factors in Computing Systems},
	year = {2006},
	month = {22/04/2006},
	pages = {889-898},
	publisher = {ACM},
	organization = {ACM},
	address = {Montreal, Quebec, Canada},
	isbn = {1-59593-372-7},
	author = {Ludford, P. and D. Frankowski and Reily, K. and Wilms, K. and Terveen, L.}
}
@conference {685,
	title = {Conceptual Modelling as a New Entry in the Bazaar: The Open Model Approach},
	booktitle = {OSS2006: Open Source Systems (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	year = {2006},
	pages = {9 - 20},
	publisher = {Springer},
	organization = {Springer},
	abstract = {The present contribution proposes to transfer the main principles of open source software development to a new context: conceptual modelling; an activity closely related to software development. The goal of the proposed {\textquotedblleft}open model{\textquotedblright} approach is to collaboratively develop reference models for everyone to copy, use and refine in a public process. We briefly introduce conceptual modelling and reference models, discuss the cornerstones of an open modelling process, and propose a procedure for initiating, growing and sustaining an open model project. The paper concludes with a discussion of potential benefits and pitfalls.
},
	doi = {http://dx.doi.org/10.1007/0-387-34226-5_2},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Conceptual\%20Modelling\%20as\%20a\%20New\%20Entry.pdf},
	author = {Koch, Stefan and Strecker, Stefan and Frank, Ulrich}
}
@conference {688,
	title = {Development Platforms as a Niche for Software Companies in Open Source Software},
	booktitle = {OSS2006: Open Source Systems (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing },
	volume = {203/2006},
	year = {2006},
	month = {2006///},
	pages = {341 - 342},
	publisher = {Springer},
	organization = {Springer},
	abstract = {Without Abstract},
	issn = {978-0-387-34225-2},
	doi = {http://dx.doi.org/10.1007/0-387-34226-5_37},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Development\%20Platforms\%20as\%20a\%20Niche.pdf},
	author = {Savonnet, Marinette and Leclercq, Eric and Terrasse, Marie-No{\"e}lle and Grison, Thierry and Becker, George and Farizy, Anne and Denoyelle, Ludovic}
}
@conference {888,
	title = {Insert Movie Reference Here: A System to Bridge Conversation and Item-Oriented Web Sites},
	booktitle = {ACM SIGCHI Conference on Human Factors in Computing Systems},
	year = {2006},
	month = {22/04/2006},
	pages = {951-954},
	publisher = {ACM},
	organization = {ACM},
	isbn = {1-59593-372-7},
	author = {Sara Drenner and Max Harper and Dan Frankowski and John Riedl and Loren Terveen}
}
@article {1234,
	title = {Open Source in Web-Based Applications},
	journal = {International Journal of Information Technology and Web Engineering},
	volume = {1},
	year = {2006},
	month = {33/2006},
	pages = {81 - 94},
	abstract = {Business and recreational activities on the global communication infrastructure are increasingly based on the use of remote resources and services, and on the interaction between different, remotely located parties. In such a context, Single Sign-On technologies simplify the log-on process allowing automatic access to secondary domains through a unique log-on operation to the primary domain. In this article, we evaluate different Single Sign-On implementations focusing on the central role of Open Source in the development of Web-based systems. We outline requirements for Single Sign-On systems and evaluate four existing Open Source implementations in terms of degree of fulfilment of those requirements. Finally we compare those Open Source systems with respect to some specific Open Source community patterns.},
	issn = {1554-1053},
	doi = {10.4018/jitwe.2006070106},
	author = {Ardagna, Claudio Agostino and Frati, Fulvio and Gabriele Gianini}
}
@article {1088,
	title = {Self-Organization Patterns in Wasp and Open Source Communities},
	journal = {IEEE Intelligent Systems},
	volume = {21},
	year = {2006},
	note = {"To investigate such claims, we studied an OSS community{\textquoteright}s social network from a dataset describing the email activity of 120 different software teams"
"Our test data originated from Sourceforge (http://sourceforge.net), a large open source project repository, and included communi- ties ranging from very small networks with one or two members to large networks with thousands of members."
"we limited our consideration to email traffic associated with bug fixes and bug reporting. As other researchers have shown[5] this email subset allows an effective reconstruction of the software community{\textquoteright}s social network."
"We thank Kevin Crowston and James Howison for making their software data publicly available."},
	month = {03/2006},
	pages = {36 - 40},
	abstract = {In this paper, we conducted a comparative study of how social organization takes place in a wasp colony and OSS developer communities. Both these systems display similar global organization patterns, such as hierarchies and clear labor divisions. As our analysis shows, both systems also define interacting agent networks with similar common features that reflect limited information sharing among agents. As far as we know, this is the first research study analyzing the patterns and functional significance of these systems{\textquoteright} weighted-interaction networks. By illuminating the extent to which self-organization is responsible for patterns such as hierarchical structure, we can gain insight into the origins of organization in OSS communities.},
	keywords = {agents, decentralization, developers, email, email archives, flossmole, hierarchy, labor division, organization, self-organizing teams, social network analysis, social networks, sourceforge, teams, wasps},
	issn = {1541-1672},
	doi = {10.1109/MIS.2006.34},
	url = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.95.5574\&rep=rep1\&type=pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/valverde.pdf},
	author = {Valverde, S. and Theraulaz, G. and Gautrais, J. and Fourcassie, V. and Sole, R.V.}
}
@conference {892,
	title = {tagging, community, vocabulary, evolution},
	booktitle = {Computer Supported Cooperative Work},
	year = {2006},
	month = {04/11/2006},
	pages = {181-190},
	publisher = {ACM},
	organization = {ACM},
	address = {Banff, Alberta, Canada},
	isbn = {1-59593-249-6},
	author = {Shilad Sen and Shyong K. Lam and Dan Cosley and Al Mamunur Rashid and Dan Frankowski and Franklin Harper and Jeremy Osterhouse and John Riedl}
}
@conference {678,
	title = {A tool to support the introduction of GNU/Linux desktop system in a professional environment},
	booktitle = {OSS2006: Open Source Systems (IFIP 2.13)},
	series = {IFIP International Federation for Information Processing},
	year = {2006},
	pages = {253 - 260},
	publisher = {Springer},
	organization = {Springer},
	abstract = {The introduction of a GNU/Linux-based desktop system in a large company is often problematic, in terms of technical issues but especially for employees{\textquoteright} training costs. Mainly, these obstacles are represented by different hardware configurations that might require several ad-hoc activities to adapt a standard release to the specific environment, including company{\textquoteright}s application profile. On the other hand, GNU/Linux live distributions provide to the users{\textquoteright} community new and interesting capabilities, as self-configuration and better usability, but loosing compatibility with original distributions, that is unaffordable in professionals scenarios. DSS (Debased Scripts Set) is an answer to both questions. It is a live distribution that includes an unmodified Debian-based Linux release and a modular-designed file system.
},
	doi = {http://dx.doi.org/10.1007/0-387-34226-5_25},
	attachments = {https://flosshub.org/sites/flosshub.org/files/A\%20tool\%20to\%20support\%20the\%20introduction.pdf},
	author = {Di Cerbo, Francesco and Favara, Daniele and Scotto, Marco and Sillitti, Alberto and Succi, Giancarlo and Vernazza, Tullio}
}
@article {885,
	title = {Understanding Free/Open Source Software Development Processes},
	journal = {Software Process--Improvement and Practice},
	volume = {11},
	number = {2},
	year = {2006},
	month = {March/April},
	pages = {95-105},
	author = {Walt Scacchi and Feller, Joseph and Fitzgerald, Brian and Hissam, Scott and Lakhani, Karim}
}
@conference {890,
	title = {Using Intelligent Task Routing and Contribution Review to Help Communities Build Artifacts of Lasting Value},
	booktitle = {ACM SIGCHI Conference on Human Factors in Computing Systems},
	year = {2006},
	month = {22/04/2006},
	pages = {1037-1046},
	publisher = {ACM},
	organization = {ACM},
	address = {Montreal, Quebec, Canada},
	isbn = {1-59593-372-7},
	author = {Cosley, D. and D. Frankowski and Terveen, L. and Riedl, J.}
}
@conference {728,
	title = {Assessing the Role of Open Source Software in the European Secondary Software Sector: A Voice from Industry},
	booktitle = {OSS2005: Open Source Systems },
	year = {2005},
	pages = {82-87},
	abstract = {This paper addresses the open source software (OSS) phenomenon from an industry perspective and reveals a number of complexities surrounding the role of OSS in the secondary software sector. It presents the research results of an international workshop which was hosted with the explicit intention of extracting the voice of key industrial stakeholders. The data was gathered and analysed using a qualitative approach which revealed the key strengths and weaknesses of OSS from an industrial perspective. This formed the foundations for developing a framework describing the emerging commercial incarnation of OSS (we refer to this as Open Source Software, Inc.) The paper concludes that the European secondary software sector recognise the benefits of leveraging OSS but are aware of key issues pertinent to such an end.},
	url = {http://pascal.case.unibz.it/handle/2038/752},
	author = {{\r A}gerfalk, P{\"a}r J and Deverell, Andrea and Fitzgerald, Brian and Morgan, Lorraine}
}
@proceedings {citeulike:3052508,
	title = {Development Success in Open Source Software Projects: Exploring the Impact of Copylefted Licenses},
	year = {2005},
	abstract = {Copyleft prevents the source code of open source software (OSS) from being privately appropriated. The ethos of the OSS movement suggests that volunteer developers may particularly value and contribute to copylefted projects. Based on social movement theory, we hypothesized that copylefted OSS projects are more likely than non-copylefted OSS projects to succeed in the development process, in terms of two key indicators: developer membership and developer productivity. We performed an exploratory study using data from 62 relevant OSS projects spanning an average of three years of development time. We found that copylefted projects were associated with higher developer membership and productivity. This is the first study to empirically test the relationship between copylefted licenses and OSS project success. Implications for OSS project initiators as well as future research directions are discussed.},
	keywords = {contributions, copyleft, developer, developers, membership, productivity, project success, success},
	url = {http://aisel.isworld.org/password.asp?Vpath=AMCIS/2005\&\#38;PDFpath=OSSDAU01-1167.pdf},
	author = {Colazo, Jorge A. and Fang, Yulin and Neufeld, Derrick J.}
}
@conference {725,
	title = {EDOS: Environment for the Development and Distribution of Open Source Software},
	booktitle = {OSS2005: Open Source Systems },
	year = {2005},
	pages = {66-70},
	abstract = {The open-source software community is now comprised of a very large and growing number of contributors and users. The GNU/Linux operating system for instance has an estimated 18 million users worldwide and its contributing developers can be counted by thousands. The critical mass of contributors taking part in various opensource projects has helped to ensure high quality for open source software. However, despite the achievements of the open-source software industry, there are issues in the production of large scale open-source software (OSS) such as the GNU/Linux operating system that have to be addressed as the numbers of users, of contributors, and of available applications grow. EDOS is a European project supported by IST started October 2004 and ending in 2007, whose objective is to provide a new generation of methodologies, theoretical models, technical tools and quality models specifically tailored to OSS engineering and to software distribution over the Interne...},
	url = {http://pascal.case.unibz.it/handle/2038/737},
	author = {Abiteboul, Serge and Leroy, Xavier and Vrdoljak, Boris and Di Cosmo, Roberto and Fermigier, St{\'e}fane and Lauri{\`e}re, St{\'e}phane and Lepied, Fr{\'e}d{\'e}ric and Pop, Radu and Villard, Florent and Smets, Jean-Paul and Bryce, Ciar{\'a}n and Dittrich, Klaus R. and Milo, Tova and Sagi, Assaf and Shtossel, Yotam and Panto, Eleonora}
}
@article {102,
	title = {Empirical validation of object-oriented metrics on open source software for fault prediction},
	journal = {IEEE Transactions on Software Engineering},
	volume = {31},
	number = {10},
	year = {2005},
	note = {"This paper describes how we calculated the object-oriented metrics given by Chidamber and Kemerer to illustrate how fault-proneness detection of the source code of the open source Web and e-mail suite called Mozilla can be carried out. We checked the values obtained against the number of bugs found in its bug database - called Bugzilla - using regression and machine learning methods to validate the usefulness of these metrics for fault-proneness prediction. We also compared the metrics of several versions of Mozilla to see how the predicted fault-proneness of the software system changed during its development cycle."
metrics, 
wmc weighted methods per class, 
dit depth of inheritance, 
rfc response for a class,
noc number of children,
cbo coupling between object classes,
cohesion,
lines of code, loc, sloc
chidamber and kemerer metrics},
	pages = {897-910},
	abstract = {Open source software systems are becoming increasingly important these days. Many companies are investing in open source projects and lots of them are also using such software in their own work. But, because open source software is often developed with a different management style than the industrial ones, the quality and reliability of the code needs to be studied. Hence, the characteristics of the source code of these projects need to be measured to obtain more information about it. This paper describes how we calculated the object-oriented metrics given by Chidamber and Kemerer to illustrate how fault-proneness detection of the source code of the open source Web and e-mail suite called Mozilla can be carried out. We checked the values obtained against the number of bugs found in its bug database - called Bugzilla - using regression and machine learning methods to validate the usefulness of these metrics for fault-proneness prediction. We also compared the metrics of several versions of Mozilla to see how the predicted fault-proneness of the software system changed during its development cycle.},
	keywords = {bugs, bugzilla, cbo, defects, dit, fault-prone modules, faults, lcom, lcomn, loc, metrics, mozilla, noc, object-oriented, rfc, source code, wmc},
	url = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.115.8372\&rep=rep1\&type=pdf},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Gyimothy.pdf},
	author = {Gyimothy, T. and Ferenc, R. and Siket, I.}
}
@conference {903,
	title = {How Oversight Improves Member-Maintained Communities},
	booktitle = {ACM SIGCHI Conference on Human Factors in Computing Systems},
	year = {2005},
	publisher = {ACM},
	organization = {ACM},
	address = {Portland OR},
	author = {Cosley, D. and D. Frankowski and S. Kiesler and Terveen, L. and Riedl, J.}
}
@article {63,
	title = {The Jikes research virtual machine project: Building an open-source research community},
	journal = {Ibm Systems Journal},
	volume = {44},
	number = {2},
	year = {2005},
	note = {Times Cited: 3},
	pages = {399-417},
	abstract = {This paper describes the evolution of the Jikes (TM) Research Virtual Machine project from an IBM internal research project, called Jalapeno, into an open-source project. After summarizing the original goals of the project, we discuss the motivation for releasing it as an open-source project and the activities performed to ensure the success of the project. Throughout, we highlight the unique challenges of developing and maintaining an open-source project designed specifically to support a research community.},
	author = {Alpern, B. and Augart, S. and Blackburn, S. M. and Butrico, M. and Cocchi, A. and Cheng, P. and Dolby, J. and Fink, S. and Grove, D. and Hind, M. and McKinley, K. S. and Mergen, M. and Moss, J. E. B. and Ngo, T. and Sarkar, V. and Trapp, M.}
}
@conference {Fischer:2005:MED:1083142.1083145,
	title = {Mining evolution data of a product family},
	booktitle = {Proceedings of the 2005 international workshop on Mining software repositories},
	series = {MSR {\textquoteright}05},
	year = {2005},
	pages = {12-16},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {Diversification of software assets through changing requirements impose a constant challenge on the developers and maintainers of large software systems. Recent research has addressed the mining for data in software repositories of single products ranging from fine- to coarse grained analyses. But so far, little attention has been payed to mining data about the evolution of product families. In this work, we study the evolution and commonalities of three variants of the BSD (Berkeley Software Distribution), a large open source operating system. The research questions we tackle are concerned with how to generate high level views of the system discovering and indicating evolutionary highlights. To process the large amount of data, we extended our previously developed approach for storing release history information to support the analysis of product families. In a case study we apply our approach on data from three different code repositories representing about 8.5GB of data and 10 years of active development.},
	keywords = {bsd, change analysis, change history, cvs, evolution, freebsd, netbsd, openbsd, release history, source code, text mining},
	isbn = {1-59593-123-6},
	doi = {http://doi.acm.org/10.1145/1082983.1083145},
	url = {http://doi.acm.org/10.1145/1082983.1083145},
	attachments = {https://flosshub.org/sites/flosshub.org/files/12MiningEvolution.pdf},
	author = {Fischer, Michael and Oberleitner, Johann and Ratzinger, Jacek and Gall, Harald}
}
@conference {1682,
	title = {The Mysteries of Open Source Software: Black and White and Red All Over?},
	booktitle = {Proceedings of the 38th Annual Hawaii International Conference on System Sciences},
	year = {2005},
	pages = {196a - 196a},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Big Island, HI, USA},
	abstract = {Open Source Software (OSS) has attracted enormous media and research attention since the term was coined in February 1998. The concept itself is founded on the paradoxical premise that software source code-the {\textquoteright}crown jewels{\textquoteright} for many proprietary software companies-should be provided freely to anyone who wishes to see it. Given this fundamental initial paradox, it is perhaps hardly surprising that the OSS concept is characterised by contradictions, paradoxes and tensions throughout. In this paper we focus specifically on the following issues in relation to OSS: the cathedral v. bazaar development approach; collectivism v. individualism, the bitter strife within the OSS community itself (OSS v. OSS), and between OSS and the Free Software Foundation (OSS v. FSF); whether OSS represents a paradigm shift in the software industry; whether the software is truly open-the Berkeley Conundrum, as we have termed it here; whether OSS truly is high quality software; and whether OSS is a {\textquoteright}one size fits all,{\textquoteright} representing the future model for all software development.
},
	doi = {10.1109/HICSS.2005.609},
	author = {Fitzgerald, B. and Agerfalk, P.J.}
}
@conference {734,
	title = {Open Source Software in Public Administration. A real example OSS for egovernment Observatories},
	booktitle = {OSS2005: Open Source Systems },
	year = {2005},
	pages = {119-124},
	abstract = {Open Source Software (OSS) has risen to great prominence. Briefly, OSS programs are programs whose licenses give users the freedom to run the program for any purpose, to study and modify the program, and to redistribute copies of either the original or modified program (without having to pay royalties to previous developers). In the last years the Italian Public Administrations (PA) points out the benefits of using OSS as a valid alternative to closed source software. The goal of this paper is to illustrate the state of the art of OSS in Italian PA and describe two pratical examples of the use of OSS in the e-government area. Those examples are represented by the local e-government observatories developed respectively by Emilia Romagna and Liguria Regions. A real and settled knowledge about current and past egovernment initiatives in Italy can improve the future planning. For these reasons several Italian Regions developed Observatories for e-Government and Informatio...},
	url = {http://pascal.case.unibz.it/handle/2038/1208},
	author = {Davini, Emanuela and Faggioni, Elisabetta and Granatella, Giampiero and Tartari, Dimitri and Scotto, Marco}
}
@article {flosswp214,
	title = {Penguins, Camels, and Other Birds of a Feather: Brokerage, Boundary Spanning, and Leadership in Open Innovation Communities},
	year = {2005},
	month = {April},
	abstract = {What types of human and social capital identify the emergence of leaders of open innovation communities? Consistent with the norms of an engineering culture, we find that future leaders must first make strong technical contributions. Beyond technical contributions, they must then integrate their voluntary communities in order to avoid the ever present danger of forking and balkanization. This is enabled by two correlated but distinct social positions: brokerage, and boundary spanning between technological modules. An inherent lack of trust associated with brokerage positions can be overcome through physical interaction or contributions within technological boundaries. Successful leaders are thus the product of strong technical contribution and a structural position that can bind the community together.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/flemingwaguespack.pdf},
	author = {Lee Fleming}
}
@article {flosswp232,
	title = {Seeking the Source: Software Source Code as a Social and Technical Artifact},
	year = {2005},
	month = {November},
	abstract = {In distributed software development, two sorts of dependencies can arise. The structure of the software system itself can create dependencies between software elements, while the structure of the development process can create dependencies between software developers. Each of these both shapes and reflects the development process. Our research concerns the extent to which, by looking uniformly at artifacts and activities, we can uncover the structures of software projects, and the ways in which development processes are inscribed into software artifacts. We show how a range of organizational processes and arrangements can be uncovered in software repositories, with implications for collaborative work in large distributed groups such as open source communities.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/desouza.pdf},
	author = {De Souza, Cleidson and Jon Froehlich and Paul Dourish}
}
@conference {Fielding:2005:SAO:1062455.1062474,
	title = {Software architecture in an open source world},
	booktitle = {Proceedings of the 27th international conference on Software engineering},
	series = {ICSE {\textquoteright}05},
	year = {2005},
	pages = {43{\textendash}43},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {In spite of the hype and hysteria surrounding open source software development, there is very little that can be said of open source in general. Open source projects range in scope from the miniscule, such as the thousands of non-maintained code dumps left behind at the end of class projects, dissertations, and failed commercial ventures, to the truly international, with thousands of developers collaborating, directly or indirectly, on a common platform. One characteristic that is shared by the largest and most successful open source projects, however, is a software architecture designed to promote anarchic collaboration through extensions while at the same time preserving centralized control over the interfaces. This talk features a survey of the state-of-the-practice in open source development in regards to software architecture, with particular emphasis on the modular extensibility interfaces within several of the most successful projects, including Apache httpd, Eclipse, Mozilla Firefox, Linux kernel, and the World Wide Web (which few people recognize as an open source project in itself). These projects fall under the general category of collaborative open source software development, which emphasizes community aspects of software engineering in order to compensate for the often-volunteer nature of core developers and take advantage of the scalability obtainable through Internet-based virtual organizations.},
	keywords = {apache, collaborative open source development, eclipse, extensibility, Firefox, linux, linux kernel, loose coupling, modularity, mozilla, open source, software architecture},
	isbn = {1-58113-963-2},
	doi = {10.1145/1062455.1062474},
	url = {http://doi.acm.org/10.1145/1062455.1062474},
	author = {Roy T. Fielding}
}
@unpublished {flosswp216,
	title = {Some Economic \& Legal Aspects of Open Source Software},
	year = {2005},
	month = {May},
	abstract = {The emergence of open source software as a viable economic model has risen to the forefront in the debate on the future of the information technology industry. However, at first glance, the open source software development model is strikingly enigmatic and counterintuitive. To help better understand this phenomenon, this paper, through market data and economic theory, proceeds to ask and answer three related questions. First, what is the economic relationship between open source software development communities and proprietary software firms? Second, what are the resulting effects on market innovation and innovation incentives? And third, what legal mechanisms allow for the sustainability of open source software and should they be expanded or reduced? This paper concludes that open source activity appears to be generating four economic effects, whose net effect on innovation in the software market is ambiguous.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/frost.pdf},
	author = {Jonathon Frost}
}
@conference {720,
	title = {Towards an Open Source Development Process - Evaluating the Migration to an Open Source Project by Means of the Capability Maturity Model},
	booktitle = {OSS2005: Open Source Systems },
	year = {2005},
	pages = {37-43},
	abstract = {In this paper we review the ongoing development of a Web-based community system that has been migrated from a closed software development to an open source project. We identify three different phases in the migration process where the development process changed significantly. We analyse these phases by means of the Capability Maturity Model (CMM). The insights gained show the implications of such a migration process towards open source concerning the process quality of a development process. They also show underlying assumptions of the CMM that do not totally match with developments in this specific case study. As a helpful outcome, our reflection about the ongoing software development process helped identify two crucial factors: reflection about the process is possible even at lower levels and how to handle people{\textquoteright}s fluctuation to sustain a development project.},
	url = {http://pascal.case.unibz.it/handle/2038/1543},
	author = {Bleek, Wolf-Gideon and Finck, Matthias and Pape, Bernd}
}
@conference {Neamtiu:2005:USC:1083142.1083143,
	title = {Understanding source code evolution using abstract syntax tree matching},
	booktitle = {Proceedings of the 2005 international workshop on Mining software repositories},
	series = {MSR {\textquoteright}05},
	year = {2005},
	pages = {2-6},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {Mining software repositories at the source code level can provide a greater understanding of how software evolves. We present a tool for quickly comparing the source code of different versions of a C program. The approach is based on partial abstract syntax tree matching, and can track simple changes to global variables, types and functions. These changes can characterize aspects of software evolution useful for answering higher level questions. In particular, we consider how they could be used to inform the design of a dynamic software updating system. We report results based on measurements of various versions of popular open source programs, including BIND, OpenSSH, Apache, Vsftpd and the Linux kernel.},
	keywords = {abstract syntax trees, apache, bind, evolution, linux, openssh, software evolution, source code, source code analysis, vsftpd},
	isbn = {1-59593-123-6},
	doi = {http://doi.acm.org/10.1145/1082983.1083143},
	url = {http://doi.acm.org/10.1145/1082983.1083143},
	attachments = {https://flosshub.org/sites/flosshub.org/files/2Understanding.pdf},
	author = {Neamtiu, Iulian and Foster, Jeffrey S. and Hicks, Michael}
}
@conference {742,
	title = {Using Open Source Middleware for Securing e-Gov Applications},
	booktitle = {OSS2005: Open Source Systems },
	year = {2005},
	pages = {172-178},
	abstract = {Nowadays, a global information infrastructure connects remote parties through the use of large scale networks, and many companies focus on developing e-services based on remote resources and on interaction between remote parties. In such a context, e-Government (e-Gov) systems became of paramount importance for the Public Administration, and many ongoing development projects are targeted on their implementation and release. For open source software to play an important role in this scenario, two main technological requirements must be fulfilled: (i) the identification and optimization of de facto standards for building e-Gov open source software components and (ii) a standard integration strategy of these components into an open source middleware layer, capable of conveying a completely open-source e-Gov solution. In this paper, we argue that e-Gov systems should be constructed on a open source middleware layer, providing full public responsibility in its development. W...},
	url = {http://pascal.case.unibz.it/handle/2038/1553},
	author = {Ardagna, Claudio Agostino and Damiani, Ernesto and Frati, Fulvio and Montel, Martin}
}
@inbook {53,
	title = {Why hackers do what they do: Understanding motivation and effort in free/open source software projects},
	booktitle = {Perspectives on Free and Open Source Software},
	year = {2005},
	publisher = {MIT Press},
	organization = {MIT Press},
	attachments = {https://flosshub.org/sites/flosshub.org/files/lakhaniwolf.pdf},
	author = {Karim R Lakhani and Wolf, R.},
	editor = {Feller, J. and Fitzgerald, Brian and Hissam, S. and Karim R Lakhani}
}
@proceedings {1187,
	title = {Migrating a Development Project to Open Source Software Development},
	year = {2004},
	pages = {9-13},
	abstract = {The CommSy-system is a web-based community system, which has been in development since 1999 at the University of Hamburg. It has initially been developed by students and researchers in their spare time. Its last organizational setting was a publicly funded research project, which allowed for full-time and part-time developers. As that project has come to an end, we are aiming at an open source project to ensure continuity by providing a frame for people from different organizations. In this paper we discuss the characteristics of this specific project and of other open source projects to identify a strategy for migrating that particular project to open source. We outline the actions taken to migrate the existing project to open source software development and raise questions concerning the necessary characteristics of an open source project as well as whether the actions will suffice or not.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/bleek10-14.pdf},
	author = {Bleek, W-G. and Finck, M.}
}
@proceedings {1171,
	title = {Issues in Implementing an Open Source-based XML Repository Manager for Application Maintenance and Adaptation},
	year = {2003},
	pages = {57-62},
	attachments = {https://flosshub.org/sites/flosshub.org/files/57-62.pdf},
	author = {Galatscu, A. and Florian, V. and Costea, L. and Conescu, D.}
}
@book {flosswp160,
	title = {Legal Issues Relating to Free and Open Source Software},
	year = {2003},
	month = {September},
	abstract = {This is the publication that follows the {\textquoteright}Legal Issues Relating to Free and Open Source Software Conference{\textquoteright} that was held in Brisbane, Australia on 3 July 2002. The conference examined legal and business issues facing the development and implementation of free and open source software. The presenters were lawyers, academics and software developers expert in the area drawn from Australia and the USA.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/opensourcelawbook.pdf},
	author = {Fitzgerald, Brian}
}
@article {flosswp88,
	title = {Open Source Software can Improve the Health of the Bank Balance - The Beaumont Hospital Experience},
	year = {2003},
	month = {May},
	abstract = {This study describes the implementation of open source software in a large Irish public sector organization, Beaumont Hospital. The findings reveal a radical shift in open source deployment from invisible horizontal infrastructure systems to highly visible vertical applications. The case study describes the implementation of these systems, the difficulties encountered, and also the benefits in terms of astonishing cost savings of ?13m over 5 years. . Given that Beaumont were already receiving academic pricing discounts for many of their original proprietary closed source applications, the savings for a typical commercial organization could be even higher. The study also identifies the primary drivers in the move to OSS, namely principle, pragmatism and practicality. The study also indicates how a typical company can contribute back to the OSS community in their own unique way, by distributing applications form their own domain of expertise, rather than having to make detailed code contributions to the original code base.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/fitzgeraldkenny.pdf},
	author = {Fitzgerald, Brian}
}
@proceedings {95,
	title = {Open source software in the trenches: Lessons from a large-scale OSS implementation},
	year = {2003},
	keywords = {open source},
	author = {Fitzgerald, Brian and Kenny, Tony}
}
@article {96,
	title = {Satisfying heterogeneous user needs via innovation toolkits: the case of Apache security software},
	journal = {Research Policy},
	volume = {32},
	number = {7},
	year = {2003},
	note = {Times Cited: 30},
	pages = {1199-1215},
	abstract = {Manufacturers customarily provide only a few product variants to address the average needs of users in the major segments of markets they serve. When user needs are highly heterogeneous, this approach leaves many seriously dissatisfied. One solution is to enable users to modify products on their own using "innovation toolkits." We explore the effectiveness of this solution in an empirical study of Apache security software. We find high heterogeneity of need in that field, and also find that users modifying their own software to be significantly more satisfied than non-innovating users. We propose that the "user toolkits" solution will be useful in many markets characterized by heterogeneous demand. (C) 2003 Elsevier Science B.V. All rights reserved.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/rp-vonhippelfranke_0.pdf},
	author = {Nik Franke and von Hippel, Eric}
}
@proceedings {104,
	title = {Economic incentives for participating in open source software projects},
	year = {2002},
	note = {"The data for this research come from two primary sources: Apache project archives and a targeted survey of Apache participants. Archival data are open source project artifacts such as e-mail and source code archives, source code version control meta-data, and developer Web sites"
independent variables: patch, committer, work experience, programming experience, education, job switch, firm size, firm public, industry},
	pages = {365{\textendash}372},
	abstract = {Using the Internet as a basis for communication, collaboration, and storage of artifacts, the open source community is producing software of a quality that was previously thought to be achievable only by professional engineers following strict software development paradigms. This accomplishment is even more astounding as developers contribute to the source code without any remuneration. Open source leaders as well as academics have proposed theories about the motivation of open source developers that are rooted in diverse fields such as social psychology and anthropology. However, Lerner and Tirole (2000) argue that developer participation in open source projects may, in part, be explained by existing economic theory regarding career concerns. This research seeks to confirm or disconfirm the existence of economic returns to participation in open source development. Our findings suggest that greater open source participation per se, as measured in contributions made, is not associated with wage increases. However, a higher status in a merit-based ranking within the Apache Project is associated with significantly higher wages. This suggests that employers do not reward the gain in experience through open source participation as an increase in human capital. The results are also consistent with the notion that a high rank within the Apache Software Foundation is a credible signal of the productive capacity of a programmer.},
	keywords = {apache, contributions, email, email archives, mailing list, organizational sponsorship, participation, patch, scm, source code, Survey, version control},
	attachments = {https://flosshub.org/sites/flosshub.org/files/42.pdf},
	author = {Il-Horn Hann and Jeff Roberts and Sandra Slaughter and Roy Fielding}
}
@article {1862,
	title = {Editorial: Open source software engineering},
	journal = {IEE Proceedings - Software},
	volume = {149},
	year = {2002},
	month = {2002},
	pages = {1},
	issn = {14625970},
	doi = {10.1049/ip-sen:20020363},
	attachments = {https://flosshub.org/sites/flosshub.org/files/20020363.pdf},
	author = {Feller, J. and Fitzgerald, B. and van der Hoek, A.}
}
@inbook {Madey_Freeh_Tynan_2002,
	title = {The open source software development phenomenon: An analysis based on social network theory},
	booktitle = {Proceedings of the Eighth Americas Conference on Information Systems},
	year = {2002},
	pages = {1806{\textendash}1813},
	abstract = {The OSS movement is a phenomenon that challenges many traditional theories in economics, software engineering, business strategy, and IT management. Thousands of software programmers are spending tremendous amounts of time and effort writing and debugging software, most often with no direct monetary compensation. The programs, some of which are extremely large and complex, are written without the benefit of traditional project management, change tracking, or error checking techniques. Since the programmers are working outside of a traditional organizational reward structure, accountability is an issue as well. A significant portion of internet e-commerce runs on OSS, and thus many firms have little choice but to trust mission-critical e-commerce systems to run on such software, requiring IT management to deal with new types of socio-technical problems. A better understanding of how the OSS community functions may help IT planners make more informed decisions and develop more effective strategies for using OSS software. We hypothesize that open source software development can be modeled as self-organizing, collaboration, social networks. We analyze structural data on over 39,000 open source projects hosted at SourceForge.net involving over 33,000 developers. We define two software developers to be connected part of a collaboration social network if they are members of the same project, or are connected by a chain of connected developers. Project sizes, developer project participation, and clusters of connected developers are analyzed. We find evidence to support our hypothesis, primarily in the presence of power-law relationships on project sizes (number of developers per project), project membership (number of projects joined by a developer), and cluster sizes. Potential implications for IT researchers, IT managers, and governmental policy makers are discussed.},
	keywords = {developers, social network analysis, social networks, sourceforge},
	url = {http://ais.bepress.com/cgi/viewcontent.cgi?article=1606\&context=amcis2002},
	attachments = {https://flosshub.org/sites/flosshub.org/files/MadeyFreehAmcis2002.pdf},
	author = {Madey, G. and Freeh, V and Tynan, R}
}
@article {flosswp45,
	title = {Reconciling investors and donators - The governance structure of open source},
	year = {2002},
	month = {June},
	abstract = {The authors argue that the basic institutional innovation in open source has been the crafting of a governance structure, which enables investment without crowding out donations. The focus of the presented analysis lies on the specific institutional mechanisms, by which the open source governance structure achieves to reconcile the interests of investors and donators.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/jungwirth.pdf},
	author = {Egon Franck}
}
@article {121,
	title = {Two case studies of open source software development: Apache and Mozilla},
	journal = {ACM Transactions on Software Engineering and Methodology},
	volume = {11},
	number = {3},
	year = {2002},
	note = {apache data sources:
email, cvs, bug database 
regarding email: "We wrote Perl scripts to extract date, sender identity, message subject, and the message body that was further processed to obtain details on code changes and problem reports (see below). Manual inspection was used to resolve such things as multiple email addresses in cases where all automated techniques failed."
(but the rest of the paper does not address this data source at all)

mozilla data sources
bugzilla, cvs

},
	pages = {309-346},
	abstract = {According to its proponents, open source style software development has the capacity to compete successfully, and perhaps in many cases displace, traditional commercial development methods. In order to begin investigating such claims, we examine data from two major open source projects, the Apache web server and the Mozilla browser. By using email archives of source code change history and problem reports we quantify aspects of developer participation, core team size, code ownership, productivity, defect density, and problem resolution intervals for these OSS projects. We develop several hypotheses by comparing the Apache project with several commercial projects. We then test and refine several of these hypotheses, based on an analysis of Mozilla data. We conclude with thoughts about the prospects for high- performance commercial/ open source process hybrids.},
	keywords = {apache, bug fixing, bug reports, bugzilla, change history, core, defect density, email, email archives, mailing list, mozilla, ownership, participation, productivity, scm, source code},
	attachments = {https://flosshub.org/sites/flosshub.org/files/mockusFieldingHerbsleb2002.pdf},
	author = {Audris Mockus and Roy Fielding and Herbsleb, J. D.}
}
@conference {Madey02understandingoss,
	title = {Understanding oss as a self-organizing process},
	booktitle = {In The 2nd Workshop on Open Source Software Engineering at the 24th International Conference on Software Engineering (ICSE2002},
	year = {2002},
	abstract = {We hypothesize that open source software development can be modeled as self-organizing, collaboration, social networks. We analyze structural data on over 39,000 open source projects hosted at SourceForge.net. We define two software developers to be connected {\textemdash} part of a collaboration social network {\textemdash} if they are members of the same project, or are connected by a chain of connected developers. Project sizes, developer project participation, and clusters of connected developers are analyzed. We find evidence to support our hypothesis, primarily in the presence of power-law relationships on project sizes (number of developers per project), project membership (number of projects joined by a developer), and cluster sizes.},
	keywords = {developers, size, social network analysis, social networks, sourceforge},
	attachments = {https://flosshub.org/sites/flosshub.org/files/MadeyFreehTynan.pdf},
	author = {Madey, G. and Freeh, V and Tynan, R}
}
@conference {1157,
	title = {Why Do Developers Contribute to Open Source Projects? First Evidence of Economic Incentives},
	booktitle = {Proceedings of the 2nd ICSE Workshop on Open Source},
	year = {2002},
	note = {"The data for this research come from two primary sources: Apache project archives and a targeted survey of Apache participants. Archival data are open source project artifacts such as email and source code archives, source code version control meta-data and developer web sites."},
	abstract = {The availability of commercial quality, free software products such as the Apache HTTP (web) server or the Linux operating system has focused significant attention on the open source development process by which these products were created. One of the more perplexing aspects of open source software projects is why developers freely devote their time and energy to these projects. While many open source participants cite idealistic motives for participation, Lerner and Tirole (2000) argue that developer participation in open source projects may, in part, be explained by existing economic theory regarding career concerns. This research seeks to confirm or disconfirm the existence of economic returns to participation in open source development. Preliminary results of our empirical investigation suggest that greater open source participation per se, as measured in contributions made, does not lead to wage increases. However, a higher status in a merit-based ranking within the Apache Project does lead to significantly higher wages. This suggests that employers do not reward the gain in experience through open source participation as an increase in human capital. The results are also consistent with the notion that a high rank within the Apache Software Foundation is a credible signal of the productive capacity of a programmer.},
	keywords = {apache, contributions, cvs, developers, ECONOMICS, email, email archives, financial, Human capital, mailing list, MOTIVATION, participation, source code, version control},
	attachments = {https://flosshub.org/sites/flosshub.org/files/HannRobertsSlaughterFielding.pdf},
	author = {Il-Horn Hann and Jeff Roberts and Sandra Slaughter and Roy Fielding}
}
@article {flosswp16,
	title = {How Communities Support Innovative Activities: As Exploration of Assistance and Sharing Among Innovative Users of Sporting Equipment},
	year = {2001},
	month = {August},
	abstract = {This exploratory study finds that end-user innovators who are members of voluntary sports communities often receive assistance in developing their sports-equipment innovations from fellow community members. Innovation-related information and assistance, as well as the innovations themselves, are freely within these communities. The processes by which these communities operate may be of general interest both within and beyond the consumer product arena; for example, communities of open source software developers appear to operate in similar ways.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/frankeshah.pdf},
	author = {Nik Franke}
}
@article {97,
	title = {Open source standards on software process: A practical application},
	journal = {Ieee Communications Magazine},
	volume = {39},
	number = {4},
	year = {2001},
	note = {Times Cited: 0},
	pages = {116-123},
	abstract = {Standards are generally delivered by means of static documents which are difficult to handle and to learn. Although their source text might have an open access, they do not offer an open source environment which effectively supports their assimilation, comprehension, and use. To achieve this goal, standards regulating the software process should be delivered in different "workable" formats to allow users to immediately start applying them with the support of software tools and methodologies.},
	author = {Freericks, C.}
}
@article {flosswp20,
	title = {The Web of Knowledge: An Investigation of Knowledge Exchange in Networks of Practice},
	year = {2001},
	month = {October},
	abstract = {Electronic ties are loosening the constraints of organizational structure and physical proximity to allow connectivity between individuals who would otherwise find it difficult to identify and sustain contact with others who share the similar interests. This paper explores the knowledge exchange processes in extra-organizational networks of practice by studying three technical newsgroups. We argue that the development of relational social capital is a vital component for transforming electronic posting forums into ongoing networks of practice. The results reveal that relational social capital exists on networks of practice and shows a strong relationship with knowledge exchange processes over and above the influence of individual motivation and ability.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/Farajwasko.pdf},
	author = {Samer Faraj}
}
@article {flosswp26,
	title = {A Case Study of Open Source Software Development: The Apache Server},
	journal = {Proceedings of the International Conference on Software Engineering (ICSE 2000)},
	year = {2000},
	note = {We used the following archival sources of data:
Developer email list (EMAIL).
Concurrent Version Control archive (CVS).
Problem reporting database (BUGDB).},
	month = {June},
	abstract = {According to its proponents, open source style software development has the capacity to compete successfully, and perhaps in many cases displace, traditional commercial development methods. We examine the development process of a major open source application, the Apache web server. By using email archives of source code change history and problem reports we quantify aspects of developer participation, core team size, code ownership, productivity, defect density, and problem resolution interval for this OSS project. This analysis reveals a unique process, which performs well on important measures.},
	keywords = {apache, bug fix revisions, bugs, core, cvs, defect density, developers, email archives, participation, productivity, revision control, revision history, roles, scm, source code, team size},
	attachments = {https://flosshub.org/sites/flosshub.org/files/mockusapache.pdf},
	author = {Audris Mockus and Roy Fielding and Herbsleb, James}
}
@conference {Feller:2000:FAO:359640.359723,
	title = {A framework analysis of the open source software development paradigm},
	booktitle = {Proceedings of the twenty first international conference on Information systems},
	series = {ICIS {\textquoteright}00},
	year = {2000},
	pages = {58{\textendash}69},
	publisher = {Association for Information Systems},
	organization = {Association for Information Systems},
	address = {Atlanta, GA, USA},
	abstract = {Open Source Software (OSS) has become the subject of much commercial interest of late. Certainly, OSS seems to hold much promise in addressing the core issues of the software crisis, namely that of software taking too long to develop, exceeding its budget, and not working very well. Indeed, there have been several examples of significant OSS success stories{\textemdash}the Linux operating system, the Apache web server, the BIND domain name resolution utility, to name but a few. However, little by way of rigorous academic research on OSS has been conducted to date. In this study, a framework was derived from two previous frameworks which have been very influential in the IS field, namely that of Zachman{\textquoteright}s IS architecture (ISA) and Checkland{\textquoteright}s CATWOE framework from Soft Systems Methodology (SSM). The resulting framework is used to analyze the OSS approach in detail. The potential future of OSS research is also discussed.},
	url = {http://portal.acm.org/citation.cfm?id=359640.359723},
	attachments = {https://flosshub.org/sites/flosshub.org/files/p58-feller.pdf},
	author = {Feller, Joseph and Fitzgerald, Brian}
}
@unpublished {flosswp377,
	title = {Game Theory and The Law: The Arbitration System},
	year = {1985},
	month = {January},
	abstract = {The paper refers to a game-theoretic analysis of the nature of legal arbitration, and the effects of prior negotiation. Also, it promotes the use of final-offer arbitration in labor disputes and in the event of an strike.},
	attachments = {https://flosshub.org/sites/flosshub.org/files/TESIS_COMPLETA.pdf},
	author = {Guillermo Flores}
}
