A hybrid approach for web service selection

Abstract

Web service selection which is specified to evaluate and select the best candidate from discovered Web services became one of the most significant topic in recent research on Service oriented Architecture (SOA). Indeed, current approaches are not sufficient enough to overcome Web service selection problems. Due to the nature of Web service selection, it is important to lead it to Multi Criteria Decision Making (MCDM). However, there are several MCDM methods such as AHP, ANP, TOPSIS and VIKOR. In this paper we propose a hybrid approach to solve Web service selection problem. First, we apply Analytical Hierarchy Process (AHP) to evaluate the weights of criteria instead of collect the weights directly from service consumer. In the next tread, we use VIKOR (VIšekriterijumsko KOmpromisno Rangiranje) to identify and rank the appropriate candidate services. Finally, in order to demonstrate the proposed method we have afforded an example using four criteria of QoS and five alternative services.