One of the most popular methods for representing knowledge is in the form of Production Rules. These are in the form of:
if conditions then conclusion
Example: MYCIN[Shortliffe, Edward H., Computer Based Medical Consultations: MYCIN, American Elsevier, 1976. Buchanan, Bruce G. and Shortliffe, Edward H., Rule-Based Expert Systems, Addison-Wesley, 1984.]
Rule 27
If 1) the gram stain of the organism is gram
negative, and
2) the morphology of the organism is rod, and
3) the aerobicity of the organism is
anaerobic,
Then: There is suggestive evidence (. 6) that
the identity of the organism is
Bacteroides.