Research Of Web Service Discovery Oriented To User's Requirements

With the development of science and technology,the Web service based on XML(Extensible Markup Language)has developed rapidly.The platform of Web service is based on the network.The interface of Web service is defined.The interfaces of Web service can be used by the programmer.Some data showed that there are tens of millions of Web service at the end of 2015.At present,more and more services can be produced day by day.Although there are more Web services,the efficiency of service discovery is decreased.In order to solve the above problems,the method for service discovery oriented to user's requirements is proposed in this paper.First of all,the architecture for service discovery is given.The parts in the architecture are described.The functions of the parts are introduced.The definition of Web service based on semantic is given.The pretreatment for service discovery is given based on a unified algorithm.Web service can be modeled by Petri nets.The service composition is constructed in this paper.At last,the algorithm for service discovery is proposed.There are two advantages of this paper.One is that the concept of cloud computing is induced in service discovery.The other is that the algorithms of service discovery based on the Petri net model improve service discovery efficiency totally.Moreover,the validity of proposed methods is illustrated by simulation experiment.