An information processing system which has a portion for storing metaknowledge and a portion for utilizing the metaknowledge stored in said storage portion. In newly acquiring knowledge, the utilizing portion utilizes the metaknowledge stored in said storage portion. A knowledge input prompting function...http://www.google.com.hk/patents/US4853873?utm_source=gb-gplus-share專利 US4853873 - Knowledge information processing system and method thereof
