Application of Workflow Technology on ASP Public Service Platform
工作流技术在ASP公共服务平台中的应用研究*

According to the project characteristics, an expansion activity network model suitable for ASP platform had been set up. The model was on the basis of coordinate theory and feedback mechanism, adopted XPDL norm of XML mode to realize the process definition. Then the system analyzed the XML data documents through DOM and implemented the lightweight workflow engine with the support of J2EE technology. This paper introduced the two key problems solved by the system: transactional operation and concurrent control, and proposed the lock tie mechanism based on PRI.