面向服务组合的复杂上下文本体模型

摘要

为了有效解决泛在网络环境下Web服务质量上下文描述问题,在OWL_S基础上提出了面向服务组合的复杂上下文本体模型-OWL_S_QoS+,包括用户上下文本体和服务上下文本体.用户上下文本体描述用户的环境状态、拥有的资源信息、用户需求及用户群组等对服务或组合服务运行产生影响的一系列属性；服务上下文本体在原有OWL_S定义的基础上,增加了服务对客户端与服务端的运行环境需求、不确定性QoS描述方法.通过模型比较验证了OWL_S_QoS+具有较强的描述能力.%To solve the context describe of quality of Web service in ubiquitous network environment, service composition-oriented complex context ontology model-OWL_S_QoS+ is proposed, which includes user context ontology and service context ontology. User context ontology describe user's environment, user's resource, user's requirements and user's group and so on, these information affects the running of Web service. Web service context ontology is defined Based on OWL_S, which added the running environment requirements of Web service in client and server and the QoS description method with uncertainty.