面向图形对象的协同编辑系统的并发操作冲突检测  

Conflict Detection of Concurrent Operators in Cooperated Editing System for Graphics Objects

作　　者：窦万峰[1] 张子瑜[1] 谢立[2] 

机构地区：[1]南京师范大学数科院,江苏南京210097 [2]南京大学软件新技术国家重点实验室,江苏南京210093

出　　处：《小型微型计算机系统》2003年第7期1157-1160,共4页Journal of Chinese Computer Systems

基　　金：国家"8 63"高技术计划 ( 863 -3 0 6-ZT0 2 -0 3 -1)资助

摘　　要：协同者的并发操作的冲突是引发不一致的主要原因 ,因而并发操作的冲突判别则是系统开发的一个重要的方面 .本文分析了基于图形对象的协同编辑系统的并发操作冲突的机理 ,给出了操作命令的一般表示方法 ,提出一个通用的基于该描述的冲突判别推理方法 ,并基于不同领域知识将该方法用于二维绘图系统和三维产品特征建模系统中的并发操作冲突的分析 。Consistency management is one of key techniques for CSCW. Inconsistency generally arises through misorder in applying individual changes to user data at different sites. To maintain consistency, the system must ensure that each client sees the result of these changes applied in a consistent order. This paper considers the conflicting mechanisms of concurrent operations in collaborative editing systems for graphics objects and presents a general description of operating command which is used to realize the distinguish of concurrent operations. Based on these, we give a general conflict reasoning method of concurrent operations, which is tested in different collaborative graphics editing system based on knowledge. The realized results show that our strategies are feasible and effective.

关 键 词：协同编辑系统 一致性管理 并发操作冲突 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]