15. The fuzzy inference development system of claim 8, wherein said membership function processing module comprises: triangular membership function establishing means for establishing a single input variable such that every two adjacent membership functions overlap, and the areas of overlap are symmetrical; coordinate storing means for storing in a membership function memory coordinates of the apex of each said membership function and the slope of one of its sides; and fit determining means for determining a goodness of fit of said input data by a value of said apex coordinates and said slope.
8. The fuzzy inference development system of claim 7, wherein said rule processing module and said membership function processing module for said plurality of inference engines are stored in said inference engine memory.