一种XML数据并行更新方法  

Parallel update approach for XML data

作　　者：张元平[1] 曾一[1] 闵智[1] 张利武[1] 袁纲[1] 肖敏[1] 

机构地区：[1]重庆大学计算机学院,重庆400044

出　　处：《计算机应用研究》2007年第11期130-134,149,共6页Application Research of Computers

基　　金：重庆市科技攻关重点项目(CSTC.2004AA2001-8277-18)

摘　　要：提出了一种支持在分布式系统中并行地修改XML数据的方法策略,实现了不同的系统客户端可以同时修改同一个XML数据的不同部分或相同部分。支持修改操作的分散式管理,即客户端在不与服务器进行交互的情况下进行正确的修改。支持动态客户端和动态权限控制信息,适用于在更新过程中参与更新的客户端和更新权限都发生变化的情况。This paper proposed a strategy to support parallel modification to XML data in distributed environments. With this approach different users were able to simultaneously modify different portions or the same portions of the same XML data, and decentralized management of update operations was supported in which a user could perform his privileges and verify the correctness with the digital signature technology and without interaction with the data server. Dynamic users and dynamic policies were supported which means a user might join in or drop out of during the modify process and the privilege of a user over some portions of a XML data might be changed.

关 键 词：可扩展标记语言数据 并行修改 数据完整性 数据机密性 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]