摘要
为反映组合Web服务的服务质量(QoS),文章在用模型驱动的方法对Web服务组合进行研究的基础上探讨了如何对Web服务进行QoS属性拓展,给出了拓展的WSDL元模型。通过引入模型驱动的思想,解决了Web服务对QoS属性描述不足的问题。并通过对BPEL元模型的分析,得出了组合服务在各种结构模型情况下的QoS属性的计算方法。
In order to reflect the QoS of web service composition, the model-driven method for web service composition is presented. On the basis, how to expand QoS attribute of Web service is discussed and a BPEL meta-model by UML is proposed. By introducing the idea of model-driven, this method solves the defect of web service lack of attribute of QoS. Based on the analysis of the BPEL meta-model, the cal culation method of the composed services has been fined.
出处
《计算机与数字工程》
2013年第1期76-78,100,共4页
Computer & Digital Engineering
