1. A method including: (a) determining at least one class, class hierarchy, classification scheme, category or category scheme; (b) assigning cases, persons, and/or things to said determined class, class hierarchy, classification scheme, category or category scheme; and (c) selecting and/or matching cases, persons, and/or things based at least in part on said class, class hierarchy, classification scheme, category or category scheme and/or said assignment, wherein at least one of said steps (a)-(c) includes the step of using at least some rights management information.