@book {1249, title = {Open Source Software Developer and Project Networks}, series = {IFIP Advances in Information and Communication TechnologyOpen Source Software: New Horizons}, volume = {319}, year = {2010}, note = {no information on data gathering procedures}, pages = {407 - 412}, publisher = {Springer Berlin Heidelberg}, organization = {Springer Berlin Heidelberg}, address = {Berlin, Heidelberg}, abstract = {This paper outlines complex network concepts and how social networks are built from Open Source Software (OSS) data. We present an initial study of the social networks of three different OSS forges, BerliOS Developer, GNU Savannah, and SourceForge. Much research has been done on snapshot or conflated views of these networks, especially SourceForge, due to the size of the SourceForge community. The degree distribution, connectedness, centrality, and scale-free nature of SourceForge has been presented for the network at particular points in time. However, very little research has been done on how the network grows, how connections were made, especially during its infancy, and how these metrics evolve over time. }, keywords = {berlios, savannah, sourceforge}, isbn = {978-3-642-13244-5}, issn = {1861-2288}, doi = {10.1007/978-3-642-13244-5_39}, author = {Madey, G. and van Antwerp, M.}, editor = {{\r A}gerfalk, P{\"a}r and Boldyreff, Cornelia and Gonz{\'a}lez-Barahona, Jes{\'u}s M. and Madey, Gregory R. and Noll, John} } @book {1250, title = {Warehousing and Studying Open Source Versioning Metadata}, series = {IFIP Advances in Information and Communication Technology Open Source Software: New Horizons (OSS 2010)}, volume = {319}, year = {2010}, pages = {413 - 418}, publisher = {Springer Berlin Heidelberg}, organization = {Springer Berlin Heidelberg}, address = {Berlin, Heidelberg}, abstract = {In this paper, we describe the downloading and warehousing of Open Source Software (OSS) versioning metadata from SourceForge, BerliOS Developer, and GNU Savannah. This data enables and supports research in areas such as software engineering, open source phenomena, social network analysis, data mining, and project management. This newly-formed database containing Concurrent Versions System (CVS) and Subversion (SVN) metadata offers new research opportunities for large-scale OSS development analysis. The CVS and SVN data is juxtaposed with the SourceForge.net Research Data Archive [5] for the purpose of performing more powerful and interesting queries. We also present an initial statistical analysis of some of the most active projects. }, keywords = {berlios, cvs, savannah, scm, sourceforge, srda, subversion, svn}, isbn = {978-3-642-13244-5}, issn = {1861-2288}, doi = {10.1007/978-3-642-13244-5_40}, author = {van Antwerp, M. and Madey, G.}, editor = {{\r A}gerfalk, P{\"a}r and Boldyreff, Cornelia and Gonz{\'a}lez-Barahona, Jes{\'u}s M. and Madey, Gregory R. and Noll, John} } @article {Crowston:2006a, title = {Hierarchy and centralization in Free and Open Source Software team communications}, journal = {Knowledge, Technology \& Policy}, volume = {18}, number = {4}, year = {2006}, pages = {65{\textendash}85}, abstract = {Free/Libre Open Source Software (FLOSS) development teams provide an interesting and convenient setting for studying distributed work. We begin by answering perhaps the most basic question: what is the social structure of these teams? Based on a social network analysis of interactions represented in 62,110 bug reports from 122 large and active projects, we find that some OSS teams are highly centralized, but contrary to expectation, others are not. Projects are mostly quite hierarchical on four measures of hierarchy, consistent with past research but contrary to the popular image of these projects. Furthermore, we find that the level of centralization is negatively correlated with project size, suggesting that larger projects become more modular. The paper makes a further methodological contribution by identifying appropriate analysis approaches for interaction data. We conclude by sketching directions for future research.}, keywords = {apache, bug fixing, bug tracking, FLOSS, project success, savannah, social network analysis, sourceforge, team size, teams}, attachments = {https://flosshub.org/sites/flosshub.org/files/CrowstonHierarchyAndCentralization.pdf}, author = {Kevin Crowston and Howison, James} }