Building feedback rating-based reputation system for trusted delivery of cloud services

Due to the open and dynamic nature of cloud environment, the service quality of a cloud service is not always trusted as advertised by cloud provider. Feedback rating-based reputation system is an effective approach to determine the trust of a cloud service. Unfortunately, a comprehensive reputation system is absent from present major cloud providers and not supported by present major cloud providers, e.g., Amazon, Google and Microsoft, which hampers a cloud user from selecting a trusted cloud service. In view of this challenge, in this paper, we first study why reputation system is absent from cloud, from perspectives of cloud provider and cloud user respectively. Afterwards, taking e-Commerce experience for reference, we put forward a novel reputation system tailored to cloud service delivery, i.e., R3 (Rating-Review-based Reputation system, R3). The proposed R3 is scalable towards more personalized cloud delivery applications, and can be easily integrated into the present cloud architecture. KeywordsTrust; Feedback rating; Reputation system; Service quality; cloud service