Dynamic Web Services discovery and selection using QoS-Broker architecture

Web Services are the most emerging distributed applications which can be published and invoked using standardized protocols over the public or private registries. Due to rapid development of the Web, there are numerous functionally similar Web Services available, which made the selection of the Web Service based on functional properties is not reliable. To select the functionally similar Web Service, the non functional criteria such as Quality of Service (QoS) will be considered. However, most of the clients are not experienced enough to acquire the best selection of Web Service based on its described QoS properties. In this paper we are proposing QoS-Broker architecture to find the best Web Service, which will get Web Service client´s query along with QoS requirements, and then it will use an efficient mechanism to find the best Web Service.