An Approach to Enable Cloud Service Providers to Arrange IaaS, PaaS, and Saas Using External Virtualization Infrastructures

Nowadays, the cloud computing ecosystem is more and more distributed and heterogeneous. Cloud service providers begin to build their services using cloud-based services offered by other service providers. This raises several issues due to integration between services and provider themselves. In this paper, we propose a practice addressing such a concern in a "Vertical Supply Chain" scenario of distributed clouds.

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