服务描述和服务匹配研究

Research on Service Description and Service Matching

服务发现是分布式环境下进行资源共享、数据集成、流程协作的前提,而服务描述和服务匹配策略是其中的两个关键问题,服务的多样性、异构性和其上下文的动态变化使这些问题更加复杂。为此,提出了一种能支持多样性、屏蔽异构性、适应变化上下文的服务描述模型SDMDHD,并针对此模型设计实现了包括精确匹配、语义匹配在内的服务匹配引擎,还给出了对该匹配策略的理论评估和实验结果。

Service discovery is the prerequisite of resource sharing, data integration and process collaboration in distributed environments. Service description and matching are key issues which become more complex due to diversity,heterogeneity and changing contexts of services. This paper proposes a service description model SDMDHD which can describe various services, hide their heterogeneities and adapt to changing contexts. Based on this model, service matching engine is designed and implemented to provide not only accurate matching but also semantic matching. This paper also gives the theovetilal evaluations and experiment results of the service matching mechanism.