Advances in Applications Portability and Services Interoperability among Multiple Clouds

Advances in Applications Portability and Services Interoperability among Multiple Clouds Despite the exponential growth in available services and their broad adoption, cloud computingsolutions are still heavily affected by the lack of a shared and worldwide accepted standard for their description and exposition to customers. This is reflected in the portability and interoperability issues often arising when customers try to exploit multicloud solutions. In this article the solutions proposed by the most prominent European research projects are presented, together with a set of emerging de jure and de facto standards and affirmed cloud platforms.