The official documentation is at: http://docs.alfresco.com
The system supports a range of capabilities. A capability is an ability which individually can be granted to a user that controls the behaviour of the system with respect to the user, this may be to grant a certain operation or privilege or it may be to alter the behaviour of the system for that user.
This document lists all of the working capabilities in the system. When looking at the role definition in the system you will see additional capabilities not defined in this document. Those capabilities are placeholders for future enhancement and currently perform no function.
Needs to be Reviewed