Design And Implement Of OA System Based On Workflow Technology

With the development of enterprise information of our country, many corporations applied the office automation system inside. But, in the process of practical applying of office automation system, a lot of enterprises faced many problems. Especially, when the structure and business process of the enterprise are changed, old office automation system will not meet the office demands of an enterprise that structure had been changed. These problems restrict the application range and the development foreground of office automation system mostly. So we need to build office automation system, which is flexible and able to fit for the changes of business process. Such office automation system is the one of the developing trends of office automation system. Meanwhile, workflow technology is a new subject in Computer Support Cooperative Work(CSCW)field. It is the key technology that realizes enterprise's business process modeling, process running, process supervising and management, and finally realizes automation of the business process. So the paper emphasizes on discussing how to use workflow technology combined with office automation system to implement flexible and universal office automation system.Based on the office automation system, firstly the paper sums up the development of office automation. The related concepts of workflow technology, workflow reference model, the architecture of workflow management system are introduced. Then it studies and analyzes some common methods in the modeling of workflow management system, it analyzes the process model, information model, organization model of office automation system so that the office automation system can fit the variety and complexity of the actual business process. Based on the practical demands, a lightweight workflow engine is designed and implemented. In this paper, database technology is used to store the workflow model and the workflow relative data. The design of database is partly given. Finally, the paper gives the implementation of the office automation system in part.The system is based on the .NET Framework. This pattern can split the application into business module, application controlling module and data displaying module effectively. With this pattern we can develop any module apart without worrying about coupling problems, and develop the system in an orderly way. It improves flexibility of the application and it is also convenient for integration, maintenance and upgrade. ADO.NET is used to realize the conncection between programs and database with XML. It is able to improve the flexibility and maintenance of the workflow engine.