Abstract: A rendering method, system and software for enforcing usage rights associated with digital content, including exchanging information with a first repository for storing the digital content and the associated usage rights and for processing a usage transaction specifying the usage rights to determine if access to the digital content can be granted; and exchanging information with a second repository for generating the usage transaction. The grammar includes one or more symbols to indicate the manner of use, which can be used to specify how an authorized party is able to render the digital content, use the digital content to create a new digital content, make a back-up copy of the digital content, conceal the digital content on a device on which the digital content is stored, and delete the digital content from a device on which the digital content is stored.