Research And Application Dynamic Workflow Management System Based On J2EE

The document transmission by paper within our government departments and among other departments is the main part of the daily work of all levels of the government department. To improve the speed and supervision of the document transmission of government departments through the research of combination of the advanced software computer technology and workflow management system is an important direction of the e-government system at the present stage.When the traditional workflow management system provides the support to the document transmission system, it is always criticized because it is hard to satisfy the demands. So it is urgent to improve the dynamics of workflow management. Dynamic workflow management system is an information technology tool that can effectively control and coordinate the operation of complex and changeable business processes and also achieve the interaction between people and application software. It has retained all the major functions of traditional workflow management system and at the same time it can provide dynamic change support to the ongoing process.This paper firstly introduces the workflow management system and, in addition, it mainly studies how to change the ongoing process dynamically. One way of change makes use of version management and algorithm of version replacement. The other way of change develops a strategy of human-computer interaction from analysis of the actual situation of the document transmission. This method changes strategy of active schedule of workflow engine through the modification of the property of process instance in operation period. The strategy of making the former parsing process definition file choose successor activity execution is changed to making the present participant of process assign the name of successor activity and give it back to the engine and then engine build successor activity execution according to the choice of users. The dynamic workflow management system studied by the paper includes two parts, one is visualized process customizing implement of B/S structure, the other one is workflow engine which provides dynamic support. The paper puts forward to workflow model based on process module, organization module and resource module and detailedly explains the design of process customizing implement, process definition file, process parser, activity scheduler and so on and system database. Finally, the document transmission system used by procuratorate based on this system is developed. The document transmission system currently performs good flexibility when it deals with documents.