Abstract
Cloud computing is emanated as a useful paradigm for building applications with cloud services. Different types of resources can be published as services, and a many benefits are delivered with them. For the services to be more reliable to service consumers a reliability model should be proposed for cloud based services. Since in cloud many users' access the same information the services should have high reliability feature. Hence reliability is most important feature for cloud. In this paper, we propose a reliability evaluation suite for cloud services, which includes quality attributes and metrics. A case study is presented to show its applicability.