A web service composition selection approach based on multi-dimension QoS

With the development of web service, web service composition is used widely. How to guarantee the non-functional requirement of users under the precondition of satisfying functional requirement of users is an important problem in web service composition. To address this problem, this paper presents a web service composition selection approach based on multi-dimension quality of service(QoS) which introduces multi-dimension QoS to describe the QoS of web service composition and computes the QoS of web service composition according to the type of web service composition. Then the web service composition which can best satisfy the non-functional requirement of users can be found from the web service compositions which can satisfy functional requirement of users according to this approach. At last, an application example is used to explain this approach.