大型分布式应用环境中的公共数据交换系统.pdf

·36 · 计算机应用研究 2004 年 * 大型分布式应用环境中的公共数据交换系统 1 2 刘鹂娟 , 冯建华 ( 1. 厦门市巨龙软件工程有限公司, 福建 厦门 361006; 2. 清华大学 计算机系, 北京 100084) 摘 要: 提出了公共数据交换系统 ( Public Data Exchange System, PDES) , 旨在为同属于一个大型机构, 物理上却 分离的异构、异型、异地的应用提供透明的信息交换机制。着重阐述公共数据交换系统的应用背景、体系结构以 及大型分布式环境下的应用举例, 并对公共数据交换系统的实施原则进行阐述。 关键词: 公共数据交换系统; 集成 ; 信息交换 ; 分布式应用环境 中图法分类号: TP392 文献标识码: A 文章编号: 1001- 3695( 2004) 08-0036- 03 Public Data Exchange System in a Large-scale Distributed Application Environment 1 2 LIU Li- juan , FENG Jian-hua ( 1. Xiamen Dragonsoft Engineering Co. Ltd. , Xiamen Fujian 361006, China; 2. Dept. of Computer Science, Tsinghua University, Beijing 100084, China) Abstract: Brings forward a new idea about integrating applications and information in distributed application environment with, Public Data Exchange System( PDES) aims at enabling the applications that belong to one large company or organization to exchange information transparently have different network connections, and work on different operating systems, with differ- ent hardware architectures and in different application environments. Discusses the problems to be solved by PDES. After that, the architecture of PDES is discussed and the design of PDES for a nationwide organization is given as an example. Finally gives the implementation strategy of PDES. Key words: Public Data Exchange System ( PDES) ; Integration; Information Exchange; Distributed Application Environment 随着应用的规模越来越大, 应用处理数据量的