Assessing modularity via usage changes

Authors:
Yana Momchilova Mileva;Andreas Zeller
Affiliations:
Saarland University, Saarbruecken, Germany;Saarland University, Saarbruecken, Germany
Venue:
Proceedings of the 10th ACM SIGPLAN-SIGSOFT workshop on Program analysis for software tools
Year:
2011

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Abstract

Good program design strives towards modularity, that is, limiting the effects of changes to the code. We assess the modularity of software modules by mining change histories: The more a change to a module implementation changes its usage in client code, the lower its modularity. In an early analysis of four different releases of open-source projects, we found that changes can differ greatly in their impact on client code, and that such impact helps in assessing modularity.