Specific standards for cloud computing are still in development. In an inventory by the NIST in July 2011, three groups of standardization were distinguished:
Self-service IaaS management interface standard. For example, Open Cloud Computing Interface (OCCI) and Cloud Data Management Interface (CDMI).
Standard for a functional interface for SaaS (most often through a web browser, and as such not specifically for the cloud).
Standard interfaces of SaaS with other systems (not specifically for the cloud).
Standards for cloud workload formats: a way to bring virtual machine images to the cloud. For example, Open Virtualization Format.
Standardization of workload and data portability still requires a lot of development. An interesting feature of the cloud is “the right to be forgotten.” In other words, is data really deleted after a migration?
The regular standards in this field.
On the NIST website, elaborate tables can be found with standards in the areas of interoperability, portability, and security.