A system and method for authorization to adaptively control access to a resource, comprising the steps of providing for the mapping of a principal to at least one role, wherein the at least one role is hierarchically related to the resource; providing for the evaluation of a policy based on the at least...http://www.google.fr/patents/US7992189?utm_source=gb-gplus-shareBrevet US7992189 - System and method for hierarchical role-based entitlements
System and method for hierarchical role-based entitlements