Cloud broker-based refundable service on multitenant environment

Cloud Computing is a dominating computing paradigm with its significant impact on the distribution of computing resources and business attribution. However, due to the lack of fairness in pricing and SLAs during the service in cloud computing, customers are dissatisfied with the existing pricing model of current situation, and there have an immense chance to lose those dissatisfied customers. Therefore, we are going provide a solution that can preserve customers´ appreciation by refundable service. In this paper, we proposed a unique technique that can boost up customer satisfaction and diminish cloud service provider anxiety for continuing their business. We applied a third party cloud broker that can handle all of the business procedure instead of cloud service provider. Our method offers refunding in case of unutilized resource as well service quality degradation that is service level agreement (SLA) violation. The experiment results demonstrate different refund amount for cloud resource consumers´ considering with several attribute.