Internet环境下基于语义的服务组合研究

Study on Service Composition with Semantics Based on Internet

服务科学、管理与工程(Service,Science,Management,Engineering,SSME)是一门新兴的多学科研究领域。该学科应用信息技术将分布于各传统学科的服务整合起来构成网络服务体系,各个领域构成的服务体系将成为一个服务系统。该服务系统中的服务活动通常表现为并行、交叉行为,服务之间存在相互依赖性,这就使得服务活动的协调成为一个突出的问题。按逻辑语义的方式进行服务的注册、匹配、查询,提供动态组合的、基于语义的、计算机可理解的服务是解决服务系统动态合成各种问题的重要方法。从服务管理的角度出发,通过引入服务本体的思想,提出语义级服务描述体系,即基于本体论的、面向服务的、可动态组合的服务描述实现模型,并使用Petri网定义、描述、验证了该模型。同时将提出的模型应用于网络管理系统开发中的一个案例。

Service science,management, engineering（SSME） is a new discipline which has the multidisciplinary nature. Nowadays,an increasing amount of companies and organizations implement their core business and outsource other applications as services over Internet. Sometimes, single service cannot satisfy all the functionality needed by the user. It is imperative task to study how to compose services into a new servie. And in such system, the elementary service acrives behave in a manner of parallel, intersect, and interlinkage. And all these form dependency among the service actires. So the correspondence becomes very importance. The servicers registering, matchmaking, searching based on service＇s algebraic logic semantics is very important. And this can supply dynamic service composition to end users. It proposed a network management semantic service description model based on the ontology, service-oriented, dynamic composition. Then the model was defined, described, validated using Petri net.