An agent-based web service selection and ranking framework with QoS

With the number of services published over the Internet growing at an explosive speed, it is difficult for service requesters to select satisfactory Web services, which provide similar functionalities. Quality of service (QoS) is considered the most important non-functional criterion for further service filtering. In this paper, we firstly give a Web service description model that considers service QoS information, and then present an overall service selection and ranking framework with QoS (WSSR-Q) based on previous service description model. Finally, service selection algorithm, ranking algorithm, and quality updating mechanism are proposed in detail concerning QoS attributes value, respectively. Simulation experiments demonstrate that proposed framework with QoS for service selection and ranking can satisfy service requesters´ non-functional information requirements and achieve better web service selection effectiveness.