Recently there are many kinds of workflow process models in the world . For example text models with syntax and semantics active network graphics models state chart models and Petri net models .

目前，有很多方法和工具可用于描述工作流过程模型，例如：有一定 语法和语义的正文描述语言的方式、活动网络图的方式、状态 机的方式和Petri网的方式等。