A system and method for enforcing rights expressions specifying manners of
use of an item, include specifying by a potential recipient of an item a
first rights expression indicating a first manner of use of the item
proposed by the recipient; specifying by a provider of the item a second
rights expression indicating a second manner of use of the item proposed
by the provider; determining if there is a correspondence between the
first rights expression and the second rights expression; and applying a
rule to a determined correspondence between the first rights expression
and the second rights expression to determine if the recipient should be
granted use of the item.