实时图案协同设计中冲突问题的研究

在Internet环境中，允许多个用户同时对同一图案的任意绘图区进行设计是图案协同设计系统应满足的基本要求．然而不同设计者在协同设计过程中由于设计意图的不同而引起的操作冲突是不可避免的，因此冲突问题是图案协同设计系统的关键问题之一．着重讨论了冲突的定义，冲突的多种避免方式，提出了高效的冲突检测算法和一种能保护用户协同设计意图的冲突解决方法——基于冲突操作锁定的冲突解决方法．这些方法和算法的实现使得在分布式计算环境下协同设计的冲突问题得到了较完善的解决．

Research on the Problem of Conflict in Realtime Collaborative Pattern Design

Permission of multiple users making concurrent design in a region of the same pattern over the Internet is the basic requirement of a collaborative pattern design system. As the conflict led by several designers on different sites is unavoidable, it becomes one of the key issues in a collaborative design system. In this paper, we present the definition of conflict, describe some methods to prevent conflict, and propose an efficient algorithm for detecting conflict. The solution to the problem of conflict based on locking conflict operations is a novel way that can protect users' intention in collaborative design even if conflict occurs. By using these methods and algorithms, the problem of conflict brought in collaborative design in the distributed environment is well solved.