CSLAM: A framework for cloud service level agreement management based on WSLA

With impressive progress of cloud computing and its influence on many aspects of utility computing, many of companies and enterprises are tending to this new product of information technology; some of these companies are interested in consuming cloud services and others tend to provide cloud services. The most common thing for these two major classes of users is service level agreements (SLAs) which are set between them. Many frameworks have been introduced for SLA management in web service level, but there are few applicable frameworks that are specific for cloud computing services. In this paper, we propose a framework for SLA management in cloud computing and especially inter-cloud environments. This framework is based on WSLA which is introduced by IBM, but we have changed it to fit into cloud computing environments. This framework is in fact a component of the cloud computing framework which we have introduced in our previous work. In this paper we are not going to provide a list of cloud service SLA parameters; instead, we propose a framework to manage cloud service SLAs and metrics.