An exploratory study of the impact of antipatterns on class change- and fault-proneness |
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Authors: | Foutse Khomh Massimiliano Di Penta Yann-Ga?l Guéhéneuc Giuliano Antoniol |
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Affiliation: | (1) Department of Electrical and Computer Engineering, Queen’s University, Kingston, ON, Canada;(2) Department of Engineering, University of Sannio, Benevento, Italy;(3) SOCCER Lab. and Ptidej Team, D?partement de G?nie Informatique et G?nie Logiciel, ?cole Polytechnique de Montr?al, Montr?al, QC, Canada |
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Abstract: | Antipatterns are poor design choices that are conjectured to make object-oriented systems harder to maintain. We investigate
the impact of antipatterns on classes in object-oriented systems by studying the relation between the presence of antipatterns
and the change- and fault-proneness of the classes. We detect 13 antipatterns in 54 releases of ArgoUML, Eclipse, Mylyn, and
Rhino, and analyse (1) to what extent classes participating in antipatterns have higher odds to change or to be subject to
fault-fixing than other classes, (2) to what extent these odds (if higher) are due to the sizes of the classes or to the presence
of antipatterns, and (3) what kinds of changes affect classes participating in antipatterns. We show that, in almost all releases
of the four systems, classes participating in antipatterns are more change-and fault-prone than others. We also show that
size alone cannot explain the higher odds of classes with antipatterns to underwent a (fault-fixing) change than other classes.
Finally, we show that structural changes affect more classes with antipatterns than others. We provide qualitative explanations
of the increase of change- and fault-proneness in classes participating in antipatterns using release notes and bug reports.
The obtained results justify a posteriori previous work on the specification and detection of antipatterns and could help
to better focus quality assurance and testing activities. |
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