Design And Implementation Of A Workflow System Based On XML

MIS is very important to enterprises but traditional MIS can't meet the need of enterprises today. The models of organizations in enterprises shifting from hierarchical and functional to process-centered, process often verifying and process becoming more and more complex, traditional MIS not supporting BPR, so a XML-based workflow system is designed and implemented in this thesis to fulfill the needs of the frequent changes of work flow in enterprises.First, a survey of workflow and XML is given. The architecture of a workflow system and Web Services technology are emphasized.Second, this thesis proposes the architeture of the XML-based workflow system.As for process modeling, Petri-net-mapping is used to process the data of the defined-process before which is saved in process model warehouse;as for inner data exchange of workflow system, XML is brought out to describe and orgnize the data of workflow models, and multiple threads technology is given to guarantee that the inner data of the system could be tranferred rapidly and accuratly to make the system run properly; as for the integration of workflow system and MIS function components, the components are sorted and an unified solution based on Web Services technology is brought out.In the following, The design solution of this workflow system is given based on the system architecture and nowadays technology developing levels, the solution is also described using UML class graphic; on the basis of the design solution, the implementation solution is proposed and the implementing processes of XML-processor, task manager and application interface are described.Finally, this thesis makes a conclusion about the XML-based workflow system designed and implemented in this thesis.