Semantics in QoS for Web Services: A Survey

Abstract

Quality of service (QoS) plays an important role in Web service discovery, especially in automatic Web service composition. Depending on the kinds of applications, different organizations and companies may adopt different QoS models for expressing quality of provided Web services. This leads to the issue of interoperability between and among service participants which join in service cooperation. Semantic technology has been applied in recent works aiming at providing an efficient and compatible method for describing and reasoning about QoS of different systems. In this paper, we present an overview of prominent research works related to developing QoS ontologies and discuss their advantages and shortcomings. Basing on such analysis, we indicate open issues that need further investigation in ongoing works aiming at developing and using QoS ontologies.