Extended Workflow Model Based on Web Services
基于Web服务的工作流扩展模型研究*

Workflow systems now face a difficulty that most Workflow Management Systems (WfMS) only support few enterprises' existing applications and this problem has been the supreme bottleneck. Without uniform standard of integration, deployments of WfMS must be limited by exterior applications. So bringing a new application-independent integration framework forward becomes an urgent affair of WfMS. This paper imports Web Service and Enterprise Application Integration (EAI) into the reference model of WfMC and introduces our extended workflow model which can support Web Service and other heterogeneous applications. A WfMS prototype based on the extended workflow model and its deployment into the Management Information System of a virtual enterprise are also presented.