中文摘要：

普适计算环境下的资源描述是支持各项普适计算资源管理活动的基础,普适计算环境的开放性、面向用户特点和固有的不确定性因素对资源描述方法提出了新的要求。现有研究大多针对资源描述的服务化、语义化和用户化需求部分,对如何描述资源的不确定性信息支持不足。在语义Web服务描述OWL-S的基础上,增加对随机性信息表示的支持,扩展为新的OWL-SP。新方法较为全面地支持了普适资源描述的关键需求（服务化、语义化、用户化和随机化需求）,构成了一个较为完整的普适资源描述,可作为普适资源管理活动的基础。

英文摘要：

Resource description is the foundation of resource management in pervasive computing environments.Due to the openhess,user-oriented,and uncertainty features,there are new challenges for describing resource in pervasive computing environments.Most recent work has paid attention to the service-oriented,semantic,and user-oriented issues of resource description,however, there needs the support to deal with the uncertainty.This paper presents a new approach to resource description focused on uncertainty,which is achieved be extending the OWL-S,Web service description,and it is defined as OWL-SP.The OWL-SP is able to cover the major requirements of service-oriented,semantic,user-oriented,and stochastic.The preliminary experiment evaluates the effectiveness of our approach.