Files CMIS API extensions: Namespaces 

The Files CMIS API uses the following namespaces and prefixes when referring to XML or XML schema elements in the text or examples.
Name URI Prefix Description
CMIS-Core cmis Core schema elements defined in CMIS
CMIS-RestAtom cmisra CMIS extensions to Atom
Atom atom Atom Syndication namespace
AtomPub app Atom Publishing namespace
Social-Networking snx Atom element extensions for social networking
CMIS-Social-Networking lcmis Atom and CMIS core extension elements to support social networking

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Files CMIS API extensions