Unique Hit Policy

A decision table with a Unique hit policy validates successfully only when the decision table does not have overlapping rules. In other words, any set of input values must match only one rule. This is the default policy for a decision table.

Sample

The following decision table describes a credit card approval policy. According to the policy, an applicant must have a minimum credit score of 650 and be 18 or older. Because each combination of inputs results in a match and no two rules overlap, the decision table validates successfully.

Example

An applicant has a credit score of 680 and is 20 years old. The decision table editor outlines the matching rule: