• 论文 •    

基于约束Agent的面向服务性能的服务复合方案

周根春,曹  健,张申生,周晓俊   

  1. 上海交通大学 计算机系计算机集成技术研究室,上海  200030
  • 出版日期:2005-08-15 发布日期:2005-08-25

Web services composition based on constraint Agent for service performance

ZHOU Gen-chun, CAO Jian, ZHANG Shen-sheng, ZHOU Xiao-jun   

  1. CIT Lab, Dep. of Computer Sci.& Tech., Shanghai Jiaotong Univ., Shanghai  200030, China
  • Online:2005-08-15 Published:2005-08-25

摘要: 现有的Web服务复合一般都采用静态绑定的方法,无法实现服务的动态绑定和整个服务流程的动态性能优化。为此,提出了一种基于约束Agent进行面向性能优化的动态服务复合方案;引入了约束以表达服务复合中的性能要求;设计了一种基于约束的信念-希望-意图智能主体;实现了基于约束的协商算法以实现服务的优化选择;介绍了一个实例和系统实现。

关键词: 服务复合, 性能, 约束满足问题, 协商

Abstract: The current composition of Web services usually employs a static binding approach so that services cant be dynamically integrated and the overall service process cannot be optimized. A dynamical service composition model based on constraint agent was proposed to optimize the performance of the service process. Constraint was introduced to represent performance requirements in service composition. An Belief-Desire-Intention (BDI) agent based on the constraints was designed, and a negotiation algorithm was developed to support optimized service selection. The case study and an introduction to the system implementation were also given.

Key words: service composition, performance, constraint satisfaction problem, negotiation

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