Use Case Model of QoS with Extensible Registry Protocol

Web Services provides almost similar functionalities, but finding best service is the basic objective of this paper. In this paper, focus on quantifiable measurements is done. The main objective of this paper is to investigate how dynamic web service discovery can be realized to satisfy a customer´s QoS requirements using an approach that can be accommodated within existing basic web service protocols like UDDI, WSDL, but the limitation of UDDI is that it provides syntactic information only .To solve this problem, we proposed a quality manager to handle quality database along with UDDI as well as proposed a model of rating similar web service. The model provides quick discovery with high probability of web services.