Design And Implement Of Lightweight Workflow Engine

To acquire preponderance over global competition,enterprises must rapidly response the market's requirements,constantly adjust their orgnization mode and reconstruct their business process. Process's design,optimization and management become the important measure in business competition. Enterprises instantly require the support for their business process's reconstruction.With the evolvement of business applications, enterprises's business becomes more complicated, at the same time, enterprises promote the requirements for business flexibility, All thess result in the increase of cost of business development. Developers hope to find a system platform ot rapidly develop business applications. Workflow technology facilitates this by providing methodologies and technologies to support business process modeling and optimizing.According to the analysis of the requirements to develop critical business application in aostaral erp system, this paper presents a framework of a relationship-based lightweight workflow engine, which is built over the conventional relational database system. It consists of tree components: organization medel, information model and control model. The reasons that concepts of relationship and lightweight are adopted to design the workflow engine are thoroughly discussed in the paper. Also, this paper sets forth theprinciple to design, the representation and of the way to implement the organizatior, information and control model of the workflow engine, respectively, A prototype of this workflow engine has been applied to a project about the aostalal erp system, which shows the application of the workflow engine can markedly shorten the cycle of the development critical business applications.