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Versioning systems such as CVS exhibit a large potential to investigate and understand the evolution of large software systems. Bug reporting systems such as Bugzilla help to understand which parts of the system are affected by problems. In this article, we present a novel visual approach to uncover the relationship between evolving software and the way it is affected by software bugs. By visually...
Architectural stability refers to the extent software architecture is flexible to endure evolutionary changes while leaving the architecture intact. Approaches to evaluate software architectures for stability can be retrospective or predictive. Retrospective evaluation looks at successive releases of a software system to analyze how smoothly the evolution has taken place. Predictive evaluation examines...
Software-intensive systems evolve continuously under the pressure of new and changing requirements, generally leading to an increase in overall system complexity. In this respect, to improve quality and decrease complexity, software artifacts need to be restructured and refactored throughout their lifecycle. Since software architecture artifacts represent the highest level of implementation abstraction,...
There are some concerns in the research community about the convenience of using low-level metrics (such as SLOC, source lines of code) for characterizing the evolution of software, instead of the more traditional higher lever metrics (such as the number of modules or files). This issue has been raised in particular after some studies that suggest that libre (free, open source) software evolves differently...
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