JISE


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Journal of Information Science and Engineering, Vol. 42 No. 5, pp. 1631-1648


All-Operation-Effects Intention Preservation based on Operational Transformation for Multimedia Collaboration

WEIWEI CAI1, XIAOHU YAN2,+, CHUNMEI ZHANG1 AND ZHEN HU3
1School of Mathematics and Computer Science
Wuhan Polytechnic University
Wuhan, 430048 P.R. China
2Undergraduate School of Artificial Intelligence
Shenzhen Polytechnic University
Shenzhen, 518055 P.R. China
E-mail: yanxiaohu@szpu.edu.cn+
3Wuhan Huzhenyu Environmental Technology Co., Ltd.

Recent decades have seen a growing interest and demand for multimedia collaboration systems that aim to provide a multi-user environment in which geographically distributed users can collaborate on multimedia over the Internet. Operational transformation (OT) is a widely adopted collaboration technique. However, OT-based systems may suffer a false-tie puzzle in consistency maintenance, causing the problem of operation intention preservation. While several research efforts have been made to address the puzzle, most of these efforts achieve the goal at the price of sacrificing the efficiency and flexibility of OT-based systems. In this paper, we propose a novel false-tie solution that preserves all operation effects, minimizing the impact on flexibility and efficiency as much as possible. The concepts and implementation invented in the proposed solution would be beneficial to the development and progress of multimedia collaboration.

Keywords: multimedia collaboration, intention preservation, operation transformation, collaborative systems, consistency maintenance

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