【摘要】 服务通常是聚集功能来满足用户需求和软件动态变化的要求,从服务需求状态角度采用语义关联提出一种面向服务需求匹配驱动的服务组合方法,该方法以服务需求质量和服务需求相似度为主要参数,通过建立满足服务需求匹配的服务质量模型来支持该方法,以及从服务需求的角度建立匹配算法来驱动服务组合功能动态演化和重组,并以模糊隶属性来量化各相似度的分配.通过语义关联实现语义需求与语义Web服务映射,并检查映射间的一致性,最终实现服务需求匹配驱动服务组合.最后理论和实证表明:面向服务需求匹配驱动的服务组合方法具有较好的实用性和有效性.更多还原

【Abstract】 Service computing always aggregates functions to satisfy users′ requirements,which doesn′t take initiative to discovery,select and composite Web service,Therefore,a service composition approach based on matching-driven service requirement is proposed by changes of service requirements,which builds service requirements quality model and designs similarity algorithm of service requirement to satisfy dynamic evolution and restructuring of service compositon,and employ membership function to assign similarity and compute matching degree between semantics requirements and semantics Web services.At the same time,mapping between semantics requirement and semantics Web service is built by semantics relationship,it is aim to accomplish service composition via matching-driven sematics requirements.Theoretical and empirical studying has proven the validity practicability of the proposed method.更多还原