A production system (PS) is a program composed entirely of conditional statements called productions These productions operate on expressions stored in a global data base called working memory (WM). The productions are stored in a separate memory called production memory (PM). The production is similar
An epoch-making progress in the history of AI research is that the focus of the research has been changed from logical inference to knowledge. The chang was brought about by the development of two systems: one is DENDRAL, the other is MYCIN. They both use the method of production systems. This paper centres on summarizing and analyzing the production system. It first introduces the history and the achitecture of production systems in detail, then em-