READ

Allows HTTP GET access to RDF resources, Binary resources and their properties.

WRITE

Allows HTTP PUT/POST/PATCH/DELETE on RDF and Binary resources.

APPEND

Allows HTTP POST/PATCH on RDF resources.

CONTROL

Allows acl:Write (defined above) on http://fedora.info/definitions/v4/webac#Acl resources (Jared Whiklo)

DELETE

Allows HTTP DELETE on RDF and Binary resources (Jared Whiklo)

UPDATE

Allows HTTP PATCH on RDF and Binary resources (Jared Whiklo)

or 

Allows HTTP PUT/PATCH on RDF and Binary resources (Jared Whiklo)