支持协同产品商务中网络服务自动化的服务描述研究

Research on Web service description supporting Web service automation in collaborative product commerce

为网络服务提供全面准确的描述,是实现协同产品商务中网络服务自动化的一个前提。为此,提出了一个支持网络服务自动化的服务描述元模型。该模型对网络服务描述语言的方法进行了扩展和延伸,弥补了网络服务描述语言在服务语义描述及性能描述上的缺陷。该模型回答了“服务做什么”、“服务如何做”、“如何获取服务”和“使用服务需哪些支持”等问题。讨论了服务描述实现技术,指出了通过国防高级研究计划局用于服务的代理标记语言而建立的网络服务描述,能很好地表述该模型,为模型的实例化提供技术支持。最后通过实例对模型的正确性和技术的可行性进行了验证。

In order to realize web service automation in collaborative product commerce, a semantic-based web service description meta-model supporting web service automation was proposed. The meta-model extended the Web Services Description Language （WSDL） method and founded a remedy for defects by adding the semantic and performance information. The meta-model was made up of three parts by answering the following questions： What does the web service do, How to conduct the web service , How to get the web service, and What supports are needed for using the web service. Subsequently, through the discussion on the implementation technologies of web service description, it was pointed out that DARPA Agent Markup Language for Services （DAML_S） could satisfactorily support the instantiation of the meta-model. Finally, a case study was provided to verify the correctness of the meta-model and the feasibility of the specified implementation technology.