摘要
针对服务质量研究在流程模型相关性和流程性能动态性方面存在的不足,将吞吐量和响应时间引入到组合服务流程性能评估的流程级指标中,借助排队网络系统的相关结论,研究了组合服务流程动态性能的定量预测方法,给出了针对组合服务流程执行语言(BPEL)的动态性能临界值计算方法,并通过一个示例介绍了该方法在BPEL组合服务流程的动态性能定量预测和组合方案优化中的应用。
To bridge the current quality of service (QoS) research gap on model dependency and dynamic performance of composite service processes, this paper establishes two dynamic performance indices, i.e. Throughput (T) and Respond time (R), and represents the quantitative approach for dynamic performance prediction of composite service processes using the theories of queuing network (QN) system. Specifically, a bound computation is employed to business process exe- cution language (BPEL) based composite service processes. The case study indicates that the proposed method is effective for dynamic performance prediction and can be used for optimization of composite service processes.
出处
《高技术通讯》
EI
CAS
CSCD
北大核心
2010年第2期150-156,共7页
Chinese High Technology Letters
基金
863计划(2007AA04Z150)
国家自然科学基金(60674080
60704027)资助项目
关键词
业务流程执行语言(BPEL)
组合服务
动态性能
性能预测
排队网络
business process execution language (BPEL), prediction, queuing network composite service, dynamic performance, performance