• 论文 •    

多数据源集成系统中数据查询过程的π-演算模型

王永滨,孟庆龙,刘静   

  1. 1.北京广播学院信息工程学院,北京100024;2.河北工业大学电器技术研究所,天津300130
  • 出版日期:2003-01-15 发布日期:2003-01-25

π-Calculus Model of Query Process in Multi-Data-Source Integration System

WANG Yong-bin,MENG Qing-long ,LIU Jing   

  1. 1.School of Information Engineering, Beijing Broadcasting Institute, Beijing100024, China;
  • Online:2003-01-15 Published:2003-01-25

摘要: 企业动态联盟对信息系统灵活性提出了更高的要求。我们开发的异构数据源集成系统,具有系统配置灵活和数据源的“即插即用”特点,并给出了其简化的数据查询过程的π-演算模型。利用该模型研究了系统动态行为,表现其多层结构中多代理、多对象之间的互操作性。该模型显示了HDSI的并发性、分布性及适于动态联盟组织结构和软硬件平台多变性的灵活性。该形式化模型有利于系统的改进、维护及验证。

关键词: 异构数据源, 集成, π-演算, 动态联盟, 进程代数, 代理

Abstract: Higher flexibility of information system is demanded by the enterprise dynamic alliance. A heterogeneous data-source integration (HDSI) system with flexible configuration and convenient "Plug-Play" of data-sources, is developed. And then, the Pi-Calculus model, which can simplify the data query process, is put forward. By using the model, the dynamic behaviors of HDSI are researched. The interoperation between multiple agents in multi-tier architecture of HDSI is demonstrated. The distribution feature, concurrence feature and flexibility feature for changeability of the organization structure and software-hardware platforms in the enterprise dynamic alliance, are reflected by this model.

Key words: heterogeneous data-source, integration, Pi-Calculus, dynamic alliance, process algebra, agent

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