Example: MYCIN (Shortliffe)
If (1) the stain of the organism is gram-positive, and
(2) the morphology of the organism is coccus, and
(3) the growth conformation of the organism is clumps,l
Then there is suggestive evidence (0.7) that
the identity of the organism is staphylococcus.
An expert system for guiding bacterial infection
Premise: ($and (same cntxt gram grampos)
(same contxt morph coccus)
(same cntxt conform clumps))
Action: (conclude cntxt ident staphylococcus tally 0.7)