Articial Intelligence Center

The development of reasoning systems that can reason and plan in a continuously changing environment is emerging as an important area of research in Articial In telligence This paper describes some of the features of a Procedural Reasoning System PRS that enables it to operate eectively in such environments The basic system design is rst described and it is shown how this architecture supports both goal directed reasoning and the ability to react rapidly to unanticipated changes in the en vironment The decisionmaking capabili ties of the system are then discussed an