Juan José Amor

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Software evolution research has recently focused on new development paradigms, studying whether laws found in more classic development environments also apply. Previous works have pointed out that at least some laws seem not to be valid for these new environments and even Lehman has labeled those (up to the moment few) cases as anomalies and has suggested(More)
Software evolution studies have traditionally focused on individual products. In this study we scale up the idea of software evolution by considering software compilations composed of a large quantity of independently developed products, engineered to work together. With the success of libre (free, open source) software, these compilations have become(More)
With the success of libre (free, open source) software, a new type of software compilation has become increasingly common. Such compilations, often referred to as 'distributions', group hundreds, if not thousands, of software applications and libraries written by independent parties into an integrated system. Software compilations raise a number of(More)
When characterizing the coding activity of developers on a software project, a common technique is to study the transactions in the versioning system. However, not all transactions are equal, neither represent the same kind (both in quality and quantity) of activity. In this paper, a methodology for classifying the interactions of developers with versioning(More)
The Debian GNU/Linux is one of today’s most popular Linux-based distributions. It is intended not only for final users, but also as a basis for other projects which can build on top of it, as is the case of some well-known “live” distributions and meta-distributions. Since its beginnings, more than one decade ago, it has undergone many technical and(More)
During the latest years libre (free, open source) software has gained a lot of attention from the industry. Following this interest, the research community is also studying it. For instance, many teams are performing quantitative analysis on the large quantity of data which is publicly available from the development repositories maintained by libre software(More)
Debian is possibly the largest free software distribution, with well over 4,500 source packages in the latest stable release (Debian 3.0) and more than 8,000 source packages in the release currently in preparation. However, we wish to know what these numbers mean. In this paper, we use David A. Wheeler’s SLOCCount system to determine the number of physical(More)
Debian is possibly the largest free software distribution, with well over 4,500 source packages in the latest stable release (Debian 3.0) and more than 8,000 source packages in the release currently in preparation. However, we wish to know what these numbers mean. In this paper, we use David A. Wheeler’s SLOCCount system to determine the number of physical(More)
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