The disclosed technology can be used to develop systems and perform methods in which restriction, use, and/or interaction values can be assigned to license attributes associated with a first license to specify particular restrictions, uses (e.g., distribution), and interactions (e.g., manipulations)...http://www.google.com/patents/US7552093?utm_source=gb-gplus-sharePatent US7552093 - Resolving license dependencies for aggregations of legally-protectable content