为了实现对不确定时间工作流Petri网的成本控制,在原型Petri网的基础之上,基于模糊理论,通过建立模糊时间Petri网,实现对不确定性时间信息的全面描述。在考虑工作流具体运作的情况下,扩展模糊时间Petri网,设定定义在变迁集上的价格函数,从而提出不确定时间价格Petri网。而后规定了该网的化简规则和算法,并通过实例演算该流程。
To realize the cost control of Petri net of workflow with uncertain time, this paper comprehensively describes uncertain time information by establishing Petri net of fuzzy time according to fuzzy theory based on prototype Petri net; expands Petri net of fuzzy time while considering the specific operation of workflow, sets the price function defined on transition set and thus puts forward the Petri net of price with uncertain time; then defines the simplification rule and algorithm of this net and perform this process through example.