| 摘要: |
| 软件体系结构提供了系统动态演化的基础．基于特定体系结构风格，对支持分布式软件系统动态演化机 理进行研究和实践．为此，首先描述层次消息总线体系结构风格，并就相关的动态演化类型和演化流程进行讨论，最 后以区域集成服务器作为消息总线的实现机制，支持符合层次消息总线体系结构风格的分布式系统动态演化． |
| 关键词: 软件体系结构风格 动态演化 层次消息总线 区域 |
| DOI： |
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| 基金项目:Supported by the National High-Tech Research and Development Plan ofChina under Grant No．2001AA113171(国家高技术研究发展计划(863))；the National Grand Fundamental Research 973 Program of China under Grant No．2002CB312006(国家重点基础研究发展规划(973))；the National Research Foundation for the Doctoral Program of Higher Education of China under Grant No．2002001016(国家教育部博士点基金) |
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| Study on Dynamic Evolution Mechanism for Distributed Systems |
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ZHANG Shi-Kun,SUN Ruo-Bai,LI Gong-Yuan,WANG Li-Fu
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| Abstract: |
| Software architecture has the potential to provide a foundation for dynamic software evolution．In this paper,based on a specific software architectural style，the dynamic evolut ion mechanism for distributed system are studied and put into practice．Firstly software architectural style named JB/HMB is described based on hierarchical message bus．Then the dynamic evolution types and processes，which are supported by JB/HMB，are dis cussed， Finally, ZIS，an implementation of hierarchical message bus，is proposed to support dynamic evolution of distributed system adhered to JB/HMB． |
| Key words: software architecture style dynamic evolution hierarchical message bus zone |
