The Cloud Data Management Interface defines the functional interface that applications will use to create, retrieve, update and delete data elements from the Cloud. As part of this interface the client will be able to discover the capabilities of the cloud storage offering and use this interface to manage containers and the data that is placed in them. In addition, metadata can be set on containers and their contained data elements through this interface.
Link to CDMI standard
http://www.snia.org/cdmi
This working draft CDMI Reference Implementation is being released so that developers can get started with integrating CDMI into their products and applications. As the SNIA Cloud Storage Technical Working Group (TWG) continues to create additional functionality, subsequent releases of the CDMI Reference Implementation will be made available.
Link to CDMI Reference Implementation
http://www.snia.org/forums/csi/programs/CDMIportal