Study On Common Workflow Management System

In routine, with the widespread application of computer, much work has been finished by computer. At the same time, those work has been supported by all kinds of information system. But basically, these information system arc run independently, among these information systems, they lack of necessary interaction, cooperation, inter-perception. It results in a serious shortage in cooperating to finish some common task when they must coordinate many people's activities, this is the reason that why workflow management system attract the wide attentions from the research institutes and industry fields.As an important study aspect of computer supported cooperation work, the main object of workflow management is to co-ordinate every links of business procedures to make it run in some definite sequences to fulfill the automation in business procedure by invocating concerned information resource and human resource. Some basic ideas in workflow management derive from inchoate"Office Automation", "Document Management", "Table Sheet Processing" and so on. At the point of view of CSS W, WFMS is a kind of groupware system used to support cooperation among people in different place. It' s the development of groupware from supporting synchronous, no-structural cooperation to supporting formalistic, structural cooperation.This article refers many research thesis on workflow technology and on this basis describes the workflow reference model in detail. Constructs a general prototype workflow system on the basis of the WPDL Meta-model. At the same time, studies the design pattern and tries to use it in the design and realization of the system.The first chapter is a general description on this thesis.The second chapter introduces some basic conception need to understand and describes the architecture of the workflow model put forward by WfMC in detail. This chapter also describes the function of every kinds of interfaces defined in the model.The third chapter first introduces the workflow process definition language (WPDL) and on this basis introduces the meta-model designed by WfMC.The fourth chapter is the design and realization of the system using object-oriented method and introduces the usage of the design pattern in this paper.The fifth chapter summarize all the paper and forecast the research work in the future.