A Context Service Graph For Web Service Discovery With QoS

Service discovery infrastructure provides automatic integration of web services to meet new business objectives. It has three actors service provider, service broker and service requestor. The broker provides the requested service from the registry. The searching of services is very difficult process. The services should be compatible in terms of functional aspect as well as non functional features. Several research efforts have been made to discover the correct services which are going to integrate. Service requestor may use same set of services many times or different requestor may need same set of service. In this paper, I have proposed a model to support service discovery using the current history of set of services involve in execution of a business objective. The context service graph stores the successful execution of set of web services and stores the QoS at start node for comparing the QoS requirement with the new service requestor QoS. The context service graph is present at the broker side along with task details.