Research on Semantic Dynamic Service Combination Module

With the more and more amount of Web Services appears, the quality of services becomes lower and lower. There is a question which must be solved urgently, that is how to compose dynamically the Web Services effectively to satisfy people´s demand. Based on describing the disadvantages of the traditional semantic Web Services description module, this paper analyzes the concept, basic elements and categories of Web Service combination, constructs a semantic dynamic service combination module, and explains shortly several kinds of Qos demands supporting Web Services.