NDLI: Code review effectiveness: an empirical study on selected factors influence

Content Provider	IET Digital Library
Author	Jureczko, Marian Kajda, Łukasz Górecki, Paweł
Abstract	Code review is a widely adopted means of improving software quality. There are numerous techniques of reviewing including tool-assisted and over-the-shoulder. Both require significant effort to perform. However, the impact the over-the-shoulder has on review effectiveness remains unexplored. The authors goal was to compare the techniques and the effect of review size to analyse how that affects the effectiveness. They performed three experiments within one company. Changes provided by developers were reviewed twice by different reviewers, each time using a different technique. Afterwards, participants rated in a questionnaire the influence of each technique to the knowledge transfer. They observed that the number of accepted comments reported with the tool-assisted technique is approximately twice as big. Also, they noticed a relationship between comments density and the review size: the correlations vary from − 0.42 to − 0.33. The knowledge transfer was typically evaluated as it supports knowledge sharing to a limited extent for the tool-assisted technique but as it is good at supporting knowledge sharing for the over-the-shoulder technique. The results did not give a simple answer whether one technique outperforms the other. The tool-assisted technique results in more comments. However, the teams evaluated the over-the-shoulder technique as better supporting knowledge transfer.
Starting Page	794
Ending Page	805
Page Count	12
ISSN	17518806
Volume Number	14
e-ISSN	17518814
Issue Number	Issue 7, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-sen.2020.0134
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-sen/14/7
Journal	IET Software
Publisher Date	2021-01-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Code Review Effectiveness Knowledge Management Knowledge Sharing Knowledge Transfer Over-the-shoulder Technique Public Domain Software Software Engineering Software Quality Tool-assisted Technique
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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