An ARSM approach using PCB-QoS classification for web services: A multi-perspective view

With the rapid development of functionally identical web services available on the web, QoS plays essential role in determining the most suitable services for consumers. Although QoS for web services has gained wide attention in the literature, most of the existing efforts did not consider the multi-perspective QoS of web services. Unlike traditional software paradigms, Web services are provided, developed and used by different users such as provider, consumer and broker. As a result, QoS requirements vary from user to user. Existing researches are unable to provide standard solution, which can deal with what service providers, consumers and broker should expose in service description as QoS parameters. Therefore, this paper presents an extensible multi-perspective PCB-QoS classification that classifies non-functional parameters based on different service users´ requirements, such as provider, consumer and broker. An ARSM approach based on default priority constraints is also proposed for ranking of Web services that uses the presented QoS classification. With the help of proposed approach, the user can specify the service requirements without taking the hurdle of specifying the weights for each QoS parameter during Web service operations.