NDLI: Supporting semantic conflict prevention in real-time collaborative programming environments

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Supporting semantic conflict prevention in real-time collaborative programming environments

Content Provider	ACM Digital Library
Author	Sun, Chengzheng Fan, Hongfei
Abstract	Real-time collaborative programming environments support multiple programmers to concurrently edit shared source code documents at the same time over communication networks. One of the key challenges in supporting real-time collaborative programming is semantic conflicts, which may occur when multiple programmers are performing concurrent and incompatible programming work in the same source code region or in different source code regions with dependency relationships. Semantic conflicts may result in programming errors that are difficult to detect and costly to resolve. This paper presents in-depth analyses of representative collaborative programming scenarios for understanding the nature and general conditions of semantic conflicts, and proposes a novel Dependency-based Automatic Locking (DAL) approach for supporting semantic conflict prevention in real-time collaborative programming environments. The novelty of the DAL approach lies in its capabilities of supporting automatic and fine-grained locking on selected source code regions with dependency relationships to balance conflict prevention, concurrent work, and programmer convenience in real-time collaborative programming. The DAL approach and technical solutions have been implemented in the CoEclipse prototype system as a proof-of-concept for this emerging technique, which is being continuously extended for further exploration and evaluation.
Starting Page	39
Ending Page	52
Page Count	14
File Format	PDF
ISSN	15596915 19310161
DOI	10.1145/2340416.2340420
Journal	ACM SIGAPP Applied Computing Review (SIAP)
Volume Number	12
Issue Number	2
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-06-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dependency graph Dependency relationship Conflict prevention Semantic conflict Real-time collaborative programming Semantic consistency Locking state maintenance Locking
Content Type	Text
Resource Type	Article

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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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