Cloud Computing Interoperability Approaches - Possibilities and Challenges

The Cloud Computing Interoperability (CCI) is a hot research topic and has been addressed by many scientists, architects, groups etc. A lot of different approaches and possible solutions are published, but there is no accepted standard or model yet. This paper is a survey of the most influential published CCI models and discusses their possibilities and challenges. The accent in this paper is set to analysis of the Software as a Service (SaaS) CCI model based on adapters. The current state of the cloud computing market and the results of recent Cloud Computing (CC) market surveys are also included in our analysis. The presented conclusion addresses the increasing trend in the usage of cloud computing and the lack of visible result to achieve cloud computing interoperability. So the next logical step is to create adapters to achieve interoperability at the SaaS level.