【摘要】 维护系统的一致性是CSCW系统的关键技术之一 ,旨在解决由于多用户同时操作可能产生的操作冲突 ,从而破坏系统的一致性 .首先讨论了操作冲突可能导致的三类系统不一致 ,简要介绍了CSCW系统中的并发控制方法 ,给出了基于不同分布式结构的整体一致性模型和局部一致性模型 .最后 ,提出了一种树形结构来实现局部一致性模型更多还原

【Abstract】 Keeping consistency of operating system is one of the key techniques of CSCW. It solves the problems caused by multi-users. First, this article discusses three kinds of inconsistency that may result from operating system conflict; then briefly introduces some control methods of concurrency in CSCW system and describes two models which are based on different distribution structure-integrated consistency model and local consistency model; and, finally, the article presents a tree structure for achieving local consistency model.更多还原