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ICSE 2020
Wed 24 June - Thu 16 July 2020
Wed 8 Jul 2020 16:13 - 16:21 at Baekje - A10-Human Aspects 2 Chair(s): Giuseppe Scanniello

Stack Overflow accumulates an enormous amount of software engineering knowledge. However, as time passes, certain knowledge in answers may become obsolete. Such obsolete answers, if not identified or documented clearly, may mislead answer seekers and cause unexpected problems (e.g., using an out-dated security protocol). In this paper, we investigate how the knowledge in answers becomes obsolete and identify the characteristics of such obsolete answers. We find that: 1) More than half of the obsolete answers (58.4%) were probably already obsolete when they were first posted. 2) When an obsolete answer is observed, only a small proportion (20.5%) of such answers are ever updated. 3) Answers to questions in certain tags (e.g., node.js, ajax, android, and objective-c) are more likely to become obsolete. Our findings suggest that Stack Overflow should develop mechanisms to encourage the whole community to maintain answers (to avoid obsolete answers) and answer seekers are encouraged to carefully go through all information (e.g., comments) in answer threads.

Wed 8 Jul
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16:05 - 17:05: Paper Presentations - A10-Human Aspects 2 at Baekje
Chair(s): Giuseppe ScannielloUniversity of Basilicata
icse-2020-Journal-First16:05 - 16:13
Meng YanChongqing University, Xin XiaMonash University, David LoSingapore Management University, Ahmed E. HassanQueen's University, Shanping LiZhejiang University
icse-2020-Journal-First16:13 - 16:21
Haoxiang ZhangSoftware Analysis and Intelligence Lab (SAIL), Queen’s University, Kingston, Ontario, Canada, Shaowei WangMississippi State University, Tse-Hsun (Peter) ChenConcordia University, Ying ZouQueen's University, Kingston, Ontario, Ahmed E. HassanQueen's University
icse-2020-Journal-First16:21 - 16:29
Fiorella ZampettiUniversity of Sannio, Carmine VassalloUniversity of Zurich, Sebastiano PanichellaZurich University of Applied Sciences, Gerardo CanforaUniversity of Sannio, Harald GallUniversity of Zurich, Massimiliano Di PentaUniversity of Sannio
Link to publication DOI Pre-print
icse-2020-Journal-First16:29 - 16:37
Luis CruzDeflt University of Technology, Rui AbreuInstituto Superior Técnico, U. Lisboa & INESC-ID, David LoSingapore Management University
DOI Pre-print Media Attached
icse-2020-papers16:37 - 16:49
Davide SpadiniDelft University of Technology, Netherlands, Gul CalikliChalmers | University of Gothenburg, Alberto BacchelliUniversity of Zurich
DOI Pre-print Media Attached