Abstract: This article introduces Web Services and business process modeling notation(BPMN) as well as business process execution language for Web Services(BPEL4WS). The article constructs Web Services component and Web Service modeling by BPMN and BPEL4WS to integrate various application platform of enterprise and extend the inner business to the Internet, so it can reache the optimal configuration of business resources and achieve the universal interoperability between application programmes as well as the informational communication between corporations to adapt the complicated commerce.

Key words: Web Services, BPMN, BPEL4WS

摘要： 介绍了Web Services以及业务流程建模标记(BPMN)和Web服务的业务流程执行语言(BPEL4WS)，并且利用BPMN和BPEL4WS构建Web Services组件，建立Web服务模型，以整合各种企业应用平台，把企业业务由企业内部拓展到Internet上，从而达到企业资源的优化配置，实现了应用程序间的通用的互操作性以及企业间的信息交流，以适应复杂多变的商务环境。

关键词: Web服务, 业务流程建模标记, Web服务业务流程执行语言