Open Platform as a Service (OPaaS)
http://www.openplatformasaservice.com
addresses interoperability and portability by allowing developers to
connect to any cloud/application/service accessible via standard http
directly and any other protocol or method indirectly and create
whatever import/export capabilities they want into their "Open
Applications." Clouds, applications and code are everywhere - Open
Platform as a Service sits on top of it all and makes it work together
seamlessly. It is not a walled-garded with a single or proprietary
programming language. In fact, the entire Open Platform as a Service
is distributed over standard open protocols. If you can imagine it,
you can build it on OPaaS.