中文摘要：

基于工作流建模技术,提出一种包含个性化服务质量需求且具有多视图特性的服务组合模型,包括过程模型、资源模型、需求模型和服务组合相关数据。过程模型建立在活动网络图基础上,扩展了其表述能力,具有较好的可读性;资源模型考虑服务的功能和非功能特性,有很好的扩展性;需求模型采用定性和定量描述相结合的方式,来体现个性化的全局服务质量需求。基于该模型给出了一个服务组合建模的原型系统,初步验证了模型的可用性。

英文摘要：

Based on the workflow modeling technology,a multi-view service composition model named PRRD with personalized Qualicty of Service（QoS） requirements was proposed.The model exhibited four aspects,i.e.process model（P）,service resource model（R）,user requirement model（R） and relevant data of service combination（D）.The process model extended the presentation capabilities of activity network diagram with the best readability.The resource model had better expansibility due to considering functions and non-functional properties.The demand model used both qualitative and quantitative descriptions to reflect overall service quality requirements with personalized characteristics.Finally,based on the PRRD model,a prototype system for Web Services composition modeling was implemented,and feasibility of the model was verified.