Patent ID: 7039613

Claim:
A method for determining fees for access to digital works within a system having at least one repository to enforce usage rights associated with the digital works, the method comprising the steps of: associating at least one usage right with a digital work; specifying in the usage right a manner of use of the digital work and a fee specification including a maximum price to be charged to a consumer upon exercising the manner of use for the digital work in its entirety and a best price specification indicating a best price which is different from the maximum price to be charged to a consumer upon exercising the manner of use for the digital work in its entirety; determining when the consumer is entitled to the best price specification; and if it is determined that the consumer is entitled to the best price specification, returning a difference between the maximum price and the best price to the consumer, wherein said usage right is created from a grammar, including one or more symbols selected from a set of predetermined symbols to define a valid sequence of symbols to indicate the manner of use.