The Open Data Center Alliance (ODCA) has announced and published more documents for data center customers of cloud usage. These new cloud usage models for to address customer demands for interoperability of various clouds and services before for Infrastructure as a Service (IaaS) among other topics which are now joined by the new Software as a Service (SaaS), Platform as a Service (PaaS) and foundational document for cloud interoperability.
Unlike most industry trade groups or alliances that are vendor driven or centric, ODCA is consortium of global IT leaders (e.g. customers) that is vendor independent and comprises as 12 member steering committee from member companies (e.g. customers), learn more about ODCA here.