Optimal adaptive CSP scheduling on basis of priority of specific service using cloud broker

That paper focus on how to select cloud service provider (CSP) for the user which provide the best service to the user. Selection of the proper CSP depends on the rating of CSP. If rating of CSP is higher than that CSP would be select for the first user and so on. Paper has focused on both rating of CSP and rating of particular attribute of CSP. In this Paper selection of CSP depends on both rating of CSP and rating of particular attribute of CSP. Now a day´s lot of cloud service provider present in the market and day by day these number are being exceed. These are following CSP example Amazon elastic computing (EC2) cloud offers virtual machine 0.1$ per hour, Google compute cloud offer virtual machine 0.5$ and so on. This is being hard for user to select the proper CSP for the service which provide the best service in low cost and effective quality. Cloud broker work on behalf of user. Users send his requirement and budget to Cloud Broker than its deal with the Cloud Service Provider and select it for user. In this paper Rough set model is being use for selecting the optimal CSP.