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ICSE 2019
Sat 25 - Fri 31 May 2019 Montreal, QC, Canada
Fri 31 May 2019 16:50 - 17:00 at Laurier - Code Reviews Chair(s): Alexander Serebrenik

Modern Code Review (MCR) plays a key role in software quality practices. In MCR process, a new patch (i.e., a set of code changes) is encouraged to be examined by reviewers in order to identify weaknesses in source code prior to an integration into main software repositories. To mitigate the risk of having future defects, prior work suggests that MCR should be performed with sufficient review participation. Indeed, recent work shows that a low number of participated reviewers is associated with poor software quality. However, there is a likely case that a new patch still suffers from poor review participation even though reviewers were invited. Hence, in this paper, we set out to investigate the factors that are associated with the participation decision of an invited reviewer. Through a case study of 230,090 patches spread across the Android, LibreOffice, OpenStack and Qt systems, we find that (1) 16%-66% of patches have at least one invited reviewer who did not respond to the review invitation; (2) human factors play an important role in predicting whether or not an invited reviewer will participate in a review; (3) a review participation rate of an invited reviewers and code authoring experience of an invited reviewer are highly associated with the participation decision of an invited reviewer. These results can help practitioners better understand about how human factors associate with the participation decision of reviewers and serve as guidelines for inviting reviewers, leading to a better inviting decision and a better reviewer participation.

Fri 31 May
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16:00 - 17:20: Papers - Code Reviews at Laurier
Chair(s): Alexander SerebrenikEindhoven University of Technology
icse-2019-Technical-Papers16:00 - 16:20
Davide SpadiniDelft University of Technology, Netherlands, Fabio PalombaUniversity of Zurich, Tobias BaumLeibniz Universität Hannover, Stefan HanenbergUniversity of Duisburg-Essen, Germany, Magiel BruntinkSoftware Improvement Group, Alberto BacchelliUniversity of Zurich
DOI Pre-print Media Attached
icse-2019-Technical-Papers16:20 - 16:40
Adam AlamiIT University of Copenhagen, Marisa Leavitt CohnIT University of Copenhagen, Andrzej WąsowskiIT University of Copenhagen, Denmark
icse-2019-Journal-First-Paper16:40 - 16:50
Vladimir KovalenkoTU Delft, Nava TintarevDelft University of Technology, Evgeny PasynkovJetBrains GmbH, Christian BirdMicrosoft Research, Alberto BacchelliUniversity of Zurich
DOI Pre-print
icse-2019-Journal-First-Paper16:50 - 17:00
Shade RuangwanNara Institute of Science and Technology, Patanamon ThongtanunamThe University of Melbourne, Akinori IharaWakayama University, Kenichi MatsumotoNara Institute of Science and Technology
DOI Pre-print
icse-2019-Paper-Presentations17:00 - 17:20