Recommending change clusters to support software investigation: an empirical study
Journal of Software Maintenance and Evolution: Research and Practice - Working Conference on Reverse Engineering (WCRE 2008)
Information and Software Technology
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The way in which a system's software archive is partitioned influences the evolvability of that system. The partition of a software archive, e.g. subsystem decomposition, is mostly assessed by looking at the static (include, call) relations between the parts. In the literature history information is also taken into account to assess the partition. In this paper we describe our history-based approach to (automatically) assess the extent in which a certain partition allows its parts to evolve independently. We use the assumption that software entities which co-evolved often in the past are likely to be modified together in the near future as well. Hence, the elements of such a set should in principle belong to the same part. Our approach, therefore, identifies sets of co-evolving software entities, where each set has elements from more than one part of the archive. We illustrate our approach with a case study of a large software system that evolved during more than a decade, and has over 7 million lines of code.