Semantic Web-based Service Description And Service Portfolio

More and more enterprises provide specific business in the form of Web services. It makes web services become very important resources in the internet. However, the function of single service is usually relatively simple, it is hard to meet the need of complicated business. Because of that,it is the key focus of current reasching that is how to effectively compose different services. The service of semantic web is using ontology to descrip web service.In this way,it makes computer can not only understand the web services and automaticly compose web service to accomplish complicated function. For semantic web, many researchers propose not only lots of languages and method for discribing services, but also ways of composing services,which is related on the above languages and method.This paper deeply reaschs the semantic web and its related technology, and also analyses the needs of the project and the interrelated domain.On this basis, this paper provide a system model, based on semantic web.It contains four main modules: creat the discription of request service; turn the the discription of service to rule atom; make a plan for the abstract workflow of composed service;make the executable workflow and carry out the composed service. With the purpose of realizint the model, this paper do the following work:First, conceive the ontology of the domain refferred to the project;Second, combining the characteristic of the current way of discribing service with the one of the semantic way,use a new way of semantically discribing service; Last, combinat services by Artificial Intelligence Algorithm.Proved by the experiment, the prospective goal of the system model is achieved in some aspect.