METHOD FOR ACQUIRING KNOWLEDGE BASE OF EXPERT SYSTEM

PURPOSE:To easily recognize relation between a symbol and a frame and to easily execute knowledge acquiring work by selecting a symbol from the display screen of a system diagram, displaying a frame definition table on the screen and selecting a slot value or the like in the frame definition table to automati cally form an instance definition sentence. CONSTITUTION:At the time of selecting a symbol from the plotted screen of the system diagram A, the instance definition file 9 is formed and the frame definition table B is displayed on the screen. When a slot value or the like is selected on the display screen of the table B, the instance definition sentence of the symbol is formed and stored in a knowledge base 4. At the time of forming the system diagram A, the frame definition screen is displayed in each symbol and the instance definition sentence is automatically formed by slot selection. Thus, the knowledge acquiring work of frame type knowledge expression can easily be executed.