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Commutativity-based concurrency control in groupware
Rui Li; Du Li;
Collaborative Computing: Networking, Applications and Worksharing, 2005 International Conference on
19-21 Dec. 2005
Page(s):10 pp.
Abstract:
Commutativity of operations is often exploited in concurrent systems to attain high levels of concurrency. A commutativity-based concurrency control method, called operational transformation (OT), has been actively researched in groupware over the past 15 years. However, much progress can still be made on more practicable approaches to developing and proving OT algorithms. Several constraints have been proposed previously but they are generally difficult to follow and verify in practice. This paper proposes an alternative approach to address this problem. A new consistency model is defined which greatly simplifies the design and proof of OT algorithms.
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