@inbook {Bibi2016,
	title = {A Bayesian Belief Network for Modeling Open Source Software Maintenance Productivity},
	booktitle = {Open Source Systems: Integrating Communities: 12th IFIP WG 2.13 International Conference, OSS 2016, Gothenburg, Sweden, May 30 - June 2, 2016, Proceedings},
	year = {2016},
	pages = {32{\textendash}44},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	chapter = {A Bayesian Belief Network for Modeling Open Source Software Maintenance Productivity},
	address = {Cham},
	abstract = {Maintenance is one of the most effort consuming activities in the software development lifecycle. Efficient maintenance within short release cycles depends highly on the underlying source code structure, in the sense that complex modules are more difficult to maintain. In this paper we attempt to unveil and discuss relationships between maintenance productivity, the structural quality of the source code and process metrics like the type of a release and the number of downloads. To achieve this goal, we developed a Bayesian Belief Network (BBN) involving several maintainability predictors and three managerial indices for maintenance (i.e., duration, production, and productivity) on 20 open source software projects. The results suggest that maintenance duration depends on inheritance, coupling, and process metrics. On the other hand maintenance production and productivity depend mostly on code quality metrics.
},
	isbn = {978-3-319-39225-7},
	doi = {10.1007/978-3-319-39225-7_3},
	url = {http://dx.doi.org/10.1007/978-3-319-39225-7_3},
	author = {Bibi, Stamatia and Apostolos Ampatzoglou and Ioannis Stamelos},
	editor = {Kevin Crowston and Hammouda, Imed and Lundell, Bj{\"o}rn and Gregorio Robles and Gamalielsson, Jonas and Juho Lindman}
}
@article {Ampatzoglou2013131,
	title = {Building and mining a repository of design pattern instances: Practical and research benefits},
	journal = {Entertainment Computing},
	volume = {4},
	number = {2},
	year = {2013},
	note = {flossmole cited},
	pages = {131 - 142},
	abstract = {Design patterns are well-known design solutions that are reported to produce substantial benefits with respect to software quality. However, to our knowledge there are no scientific efforts on gathering information on software projects that use design patterns. This paper introduces a web repository of design patterns instances that have been used in open source projects. The usefulness of such a repository lies in the provision of a base of knowledge, where developers can identify reusable components and researchers can find a mined data set. Currently, 141 open source projects have been considered and more than 4500 pattern instances have been found and recorded in the database of the repository. The evaluation of the repository has been performed from an academic and a practical point of view. The results suggest that the repository can be useful for both experienced and inexperienced users. However, the benefits of using the repository are more significant for inexperienced users. },
	keywords = {flossmole cited, repository},
	issn = {1875-9521},
	doi = {10.1016/j.entcom.2012.10.002},
	url = {http://www.sciencedirect.com/science/article/pii/S1875952112000195},
	author = {Apostolos Ampatzoglou and Olia Michou and Ioannis Stamelos}
}
