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A NOVEL CONSISTENCY CONTROL ALGORITHM IN COOPERATIVE GRAPHICS EDITOR(CGE) 被引量:2

A NOVEL CONSISTENCY CONTROL ALGORITHM IN COOPERATIVE GRAPHICS EDITOR(CGE)
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摘要 The research work presented in this paper is based on the concrete background ofthe Cooperative Graphics Editor (CGE), allowing two or more persons to remotely edit a graphicdocument simultaneously. A new concurrency control algorithm based on partial order set ispresented, which has fast response and less undo-redo operations as there are no lock mechanisms.It is used to solve inconsistency caused by operation on intersecting graphics concurrently. CGEalso possesses a mask strategy to solve inconsistency caused by operation on the same graphicconcurrently. The research work presented in this paper is based on the concrete background of the Cooperative Graphics Editor (CGE), allowing two or more persons to remotely edit a graphic document simultaneously. A new concurrency control algorithm based on partial order set is presented, which has fast response and less undo-redo operations as there are no lock mechanisms. It is used to solve inconsistency caused by operation on intersecting graphics concurrently. CGE also possesses a mask strategy to solve inconsistency caused by operation on the same graphic concurrently.
出处 《Journal of Electronics(China)》 2003年第3期183-188,共6页 电子科学学刊(英文版)
关键词 Computer supported cooperative work Concurrency control CONSISTENCY Partial order 计算机 支撑协作系统 并行控制 一致性 偏序 图形编辑器
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