NDLI: How Multiple Developers Affect the Evolution of Code Clones

Content Provider	IEEE Xplore Digital Library
Author	Harder, J.
Copyright Year	2013
Description	Author affiliation: Software Eng. Group, Univ. of Bremen, Bremen, Germany (Harder, J.)
Abstract	The use of copy and paste in programming causes redundant passages of source code. The effect such clones have on software quality and maintainability in particular has been subject to various studies in the recent past. Although negative effects could not be confirmed in general, a non-negligible number of situations where clones did cause problems has been found. Hence, there may be yet unknown influencing factors that cause these problems. One such factor may be the number of developers involved in the creation and maintenance of a clone. The interaction of multiple developers, unevenly distributed knowledge and communication deficiencies may lead to unwanted inconsistencies and bugs, when the clones are changed. This paper presents an empirical study on long-lived software systems, in which we analyze how many developers are involved in the maintenance exact clones and whether the number of developers affects the likelihood of inconsistent changes. Our results indicate that differences between single-author and multi-author clones exist. Nevertheless, we did not find multiple developers to be the cause of problematic changes to clones.
Starting Page	30
Ending Page	39
File Size	206760
Page Count	10
File Format	PDF
ISBN	9780769549811
ISSN	10636773
DOI	10.1109/ICSM.2013.14
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-22
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cloning Computer bugs Maintenance engineering Software systems Measurement Programming History software quality code clones code authorship software evolution
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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