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SUMMARY With the growing need for quality assessment of entire software systems in the industry, new issues are emerging. First, because most software quality metrics are defined at the level of individual software components, there is a need for aggregation methods to summarize the results at the system level. Second, because a software evaluation requires(More)
Software systems exceeding a certain critical size easily become difficult to maintain and adapt. Requirements change, platforms change and if a system does not evolve properly, its usefulness will decay over time. This document presents MSE a robust, scalable, extensible interexchange format and FAMIX 3.0 a family of metamodels to represent source code.(More)
ISO 9126 promotes a three-level model of quality (factors , criteria, and metrics) which allows one to assess quality at the top level of factors and criteria. However, it is difficult to use this model as a tool to increase software quality. In the Squale model, we add practices as an intermediate level between metrics and criteria. Practices abstract away(More)
Note for the reader: this paper makes heavy use of colors in the figures. Please obtain and read an online (colored) version of this paper to better understand the ideas presented in this paper. Abstract—Dependency Structure Matrix (DSM) has been successfully applied to identify software dependencies among packages and subsystems. A number of algorithms(More)
When reengineering software systems, maintainers should be able to assess and compare multiple change scenarios for a given goal, so as to choose the most pertinent one. Because they implicitly consider one single working copy, revision control systems do not scale up well to perform simultaneous analyses of multiple versions of systems. We designed Orion,(More)
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt età la diffusion(More)
The Squale project was born from industrial effort to control software quality. Its goals are to refine and enhance Qualixo Model, a software-metric based quality model already used by large companies in France (Air France-KLM, PSA Peugeot-Citroën) and to support the estimation of return on investment produced by software quality. Qualixo Model is a(More)
—It is now understood that software metrics alone are not enough to characterize software quality. To cope with this problem, most of advanced and/or industrially validated quality models aggregate software metrics: for example, cy-clomatic complexity is combined with test coverage to stress the fact that it is more important to cover complex methods than(More)