关键词: 组合Web服务 分散协调模式 代码分割 BPEL4WS WSCA

Abstract:

Composite Web services may be orchestrated either in a centralized or in a decentralized fashion. Decentralized orchestration offers performance impro vements in terms of increased throughput and scalability and lower response time. This paper investigates the build time and runtime issues related to d  ecentralized orchestration of composite Web services, discusses the problems faced in system build-up and runtime under the decentralized mode, and gives the related solutions with the specific examples under the BPWS4J environment.

Key words: composite Web services;decentralized orchestratiom code partitioning, BPEL4WS;WSCA