Research And Implement Of Workflow Model Based-on Role In Document Processing

The technology of workflow is a new research hot spot in computer application domain since the 90's later. The definition of workflow originates from office automation and organization of manufacture field. The workflow divides a task into several sub-tasks, which is finished based on different rules. Meanwhile, the accomplishment processes are monitored, which can improve the work efficient, reduce the cost and enhance the management of enterprises. Workflow model is the abstract of workflow. It is necessary to set a workflow model because workflow's realization by computer. The research in the technique of workflow has very important meaning to our country. Such as increasing the information degree of the enterprise, circulate efficiency and the competition.Workflow model should completely support concept of workflow definition and provide the needed units to users, so many workflow models begin with process definition, such as flow chart, state chart, and so on. But they have both advantages and disadvantages .they are simple , understanding easily and are applied in less abnormal condition work flow, which can regulate the enterprises management. At the same time, their weakness is also obviously. they put few emphasis on role, so it responds urgent condition lately.In view of the fact that above the reason, first, the technical outline of workflow and the technique of workflow research level and the present situation are introduced. Then role theory, the coordinated theory, the RBAC model, the reference model of workflow, in the existing model foundation are analyzed, the role concept is introduced in this model, From the role...