Step 3: Document the confidence that should be associated
with the conclusion of each rule if the premise is true with 100% confidence.
When the values of all of the facts in the rule's premise are known with
certainty, the expert may still want to assert the conclusion with less than
100% confidence. The expert might believe the following:
If the starter cranks normally and there is a gasoline smell then the problem is the engine is flooded with 90% confidence
An inference engine will further adjust the confidence with which the conclusion is asserted if the premise values are known with less than 100% confidence.
|The next activity is to consider alternate paths to the evidence needed by each rule.|