基于Petri网的Web服务的创建与描述

Creation and Description of Web Service Based on Petri Nets

为了更好的支持Web服务组合的Petri网系统的自动生成,提出了在发布Web服务的时候即建立该服务的PNML(Petri Net Markup Language)+OWL(Ontology Web Language)的方法,在建立Web服务领域本体的基础上,通过创建Web服务的Petri网模型,为Petri网中库所元素添加相应的语义标记,得到Web服务的类似OWL-S(Ontology Web Language for Services)的服务描述,不仅提高了对Web服务操作语义描述的能力,同时为Web服务组合的Petri网系统的自动生成奠定了基础。

In order to support automatic getting its Petri net for web services dynamic composition,a method to describe web service with PNML（Petri Net Markup Language） ＋OWL（Ontology Web Language） was proposed.As a web service was created and published,creating its Petri net model for a web service based on the domain ontology,semantic markups were added to each place element of the Petri net and description of the web service was got which not only improved operation semantic description of web service but also established the foundation for automatic getting its Petri net for web services composition.