REAL-TIME EXPERT-SYSTEMS AND THEIR FUNCTION PRIMITIVES

Expert systems with on-line and real-time capabilities are required wh en the application is to be to a technical process whose states change with time; so also the contents of the expert system s knowledge-base . Also, rule-based systems are not powerful enough to satisfy the requ irements for an application to be useful. New paradigms are necessary to cope with the problems. Integration of qualitative and quantitative modelling with respect to expert system applications to large-technic al processes is a must. As processes are event-based, so must be the e xpert system applied to it. Moreover, the paper shows that event orien tation has a natural software paradigm as a counterpart: object orient ation. A method as to how the dynamical changes in the process are ref lected in a dynamical (time-dependent) knowledge-base is also shown.