【摘要】 针对目前语义Web服务发现研究中存在的不足,提出一种基于Petri网的语义Web服务发现框架。该框架利用OWL-S本体提供的语义信息及Petir网在系统动态行为方面的验证功能,从服务注册中心发现用户所需的服务组合。Web服务的发现结果不仅满足用户的功能需求,而且保证无死锁并能够正确执行,提高了服务发现的准确性。最后通过实例分析验证了该服务发现框架的有效性。更多还原

【Abstract】 A new web service discovery framework based on Petri net and semantic technology is proposed, according to the shortcomings of current research on web services discovery. This framework can discover service compositions capable of satisfying a client request by making use of semantic information provided by OWL-S ontology and vertification ability of Petri net in dynamic behavior of service system. The discovered service compositions not only satisfy a client query functionally, but also execute correctly without deadlock, which improves the accuracy of service discovery. Finally, an example is given to illustrate the effectiveness of the web service discovery framework.更多还原