基于Petri网的工作流过程建模

业务过程建模是整个工作流管理系统的基础,选择一种高效的建模技术对复杂多变的实际业务流程进行形式化表示对构建一个灵活的工作流管理系统起着至关重要的作用。本文利用了Petri网技术给业务过程建模,构造了一个灵活可分析的过程模型：首先介绍了相关的基于Petri网的工作流建模技术,接着描述了Petri网到工作流过程模型执行的映 射,然后给出了一个具体的基于Petri网建模方式的实例,最后利用随机Petri网和概率论的一些知识对该模型进行了时间性能分析。

Workflow Process Modeling Based on Petri Nets

The whole workflow management is based on business process modeling.Choosing an efficient modeling technique for the formalization of a complicated and variational business process is very important to the construction of flexible workflow management. The paper takes advantage of the Petri net techniques to model the business process, and a flexible and analytical process model is constructed. Firstly, some related workflow modeling techniques based on Petri nets are introduced, and the mapping of the Petri net to the execution of the workflow process modeling are described.Meanwhile a specific case based on the Petri net techniques is proposed. Finally, the average time performance is analyzed by using some knowledge of the stochastic Petri net and the probability theory.