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1、科 技 进 步 与 对 策 Science 2.Hebei Chemical Medical Vocational Technology College, Shijiazhuang 050026, China) Abstract ： This paper analyzes the development status of workflow systems and applications needs, makes the distribution of the virtual research organizations to conduct research and development
2、 using a grid platform, workflow management ideas. Through collaborative research and development of virtual research organizations, the concept of workflow description and a virtual research organizations to work flow description of the general approach, it discusses IDEF0 used to describe the function of the system and their mutual relations, describing the dynamics within the system, and at last, the functional model is built . Key Words ： Petri Net；Virtual Organization Collaborative Workflow；Description Method ；Build a Model