A system management apparatus and method adapted for use in a network system that comprises a plurality of devices such as computers connected via a network, whereby it is possible to automatically manage device information unique to each of the devices in association with users of the devices and subordinate...http://www.google.de/patents/US6662222?utm_source=gb-gplus-sharePatent US6662222 - Apparatus and method of managing system, and machine readable storage medium for storing program