Towards the Assessment of Federations of Clouds

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The true driving force for the creation of a federation of clouds is a few fundamental characteristics, including the variety of infrastructures, interfaces, and different aims. The federation must ensure the application of certain standards and interfaces that allow secure and effective communication across heterogeneous entities in order to ensure seamless and helpful interaction between diverse components or entities of the various cloud providers. The federation has many commercial, legal, and technical aspects to focus on. Major features like resource provisioning, security, monitoring, etc. are suggested differently in various types of federations. This chapter analyzes a number of federation architectures on various important parameters with a view to highlighting their effect on participating cloud providers. Aspects related to Service Level Agreement management, QoS, Security, and Scheduling are also discussed in the same comparison framework.