是IBM为虚拟环境系统设计的文件管理系统。

VSAM (Virtual storage access method) is the file management system designed specifically for the virtual system environment by IBM.

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在对XML路由技术进行研究和分析的基础上，提出一种基于XML路由的分布式虚拟环境系统构建方法。

Based on the analysis of XML routing techniques, a new method is presented to implement distributed virtual environment using XML routing.

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结合作者实现的应用系统，介绍了协作式分布虚拟环境系统所采用的关键技术，包括同步交互、对象分布等。

Combining our application system, introduces the key technology in distributed collaborative virtual environment system, including concurrent interaction? Object distribution.

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