Design and Implement of Workflow Engine Based on Relational Data Model

The workflow technology plays an important role in the business process management and electronic government.The design and implement of the workflow engine based on relational data model provide a basic technique for that purpose.Based on the relational database,the workflow process model is built and expressed.The workflow engine architecture according to workflow reference model is proposed and key techniques in workflow engine are implemented.Combining with land use planning,a workflow engine server and a workflow client framework which can dynamically configured are developed.As a result,it shortens the cycle of development application system and reduces the complexity of the system maintenance.