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A New Operational Transformation Framework for Real-Time Group Editors

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2 Author(s)
Rui Li ; Dept. of Comput. Sci., Texas A&M Univ., College Station, TX ; Li, D.

Group editors allow a group of distributed human users to edit a shared multimedia document at the same time over a computer network. Consistency control in this environment must not only guarantee convergence of replicated data, but also attempt to preserve intentions of operations. Operational transformation (OT) is a well-established method for optimistic consistency control in this context and has drawn continuing research attention since 1989. However, counterexamples to previous works have often been identified despite the significant progress made on this topic over the past 15 years. This paper analyzes the root of correctness problems in OT and establishes a novel operational transformation framework for developing OT algorithms and proving their correctness

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:18 ,  Issue: 3 )