支持数据流分发的组合服务协调框架  

A Coordination Framework of Web Service Composition to Support Data-Flow Distribution

作　　者：翟岩龙[1] 宿红毅 肖玮 战守义[1] 

机构地区：[1]北京理工大学计算机科学技术学院,北京100081 [2]特种机电研究所(北京),北京100012

出　　处：《北京理工大学学报》2009年第12期1091-1095,1109,共6页Transactions of Beijing Institute of Technology

基　　金：国家部委预研项目(513040102)

摘　　要：针对集中式Web服务组合的性能缺陷以及完全分布式Web服务组合中组件服务重用性差等问题,提出一种基于集中控制流分散数据流模式的Web服务组合协调框架.描述了框架中运行的协调协议的形式化定义、模型和语法结构.采用数据流分析方法优化组合服务.提出从BPEL到协调协议的转换算法.实验结果表明,采用此协调框架的组合服务不仅保持了组件服务的可重用性,而且在响应时间和事务处理能力等方面性能有显著提高.Current Web service composition models encounter performance or reusability problems.A Web service coordination framework is presented to support the data flow distribution.The formal definition,meta-model and the schema of the coordination protocol were presented.A mechanism to optimize and transfer the BPEL process into the coordination protocol was proposed to leverage the legacy composite services which are described by BPEL.The experiment results showed that the composite service deployed in the coordination framework achieved better performance than the BPEL based composite service.

关 键 词：WEB服务组合 协调框架 协调协议 数据流优化 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]