Abstract: The specification describes a Graphically Used Expert System Tool, which is a computer program which enables a non-computer literate expert (the developer) to develop an expert system for non-expert users. A plurality of standardized data records and screen displays are linked together by the developer using simplified entry blanks and standardized icons which implement program functions. The developer enters segments of knowledge, which may be statements or questions on each data record, and links it to one to six other data records to form a disjoin logic set. The plurality of knowledge segments and the way in which they are linked together as exit option actions form a cognitive map which represents the natural thought process of the expert developer, thus eliminating the need for traditional deep thought analysis or "if then" inference rules and logic.