Skip to content

Hit Policy – General Rules

When more than one rule matches the input data, this is known as overlapping rules , “Hit Policy” specifies what the Decision Table should do as a result. The “Hit Policy” is succinctly stated using the first character of the policy name for clarity.

  • Hit Policy is selected in this field.

/assets/images/d69abe2de222be86d0c5e5b4e07039a2.gif

Hit Policies

  • Multiple (conflicting) rules can match different outputs.
  • Rules are evaluated from top to bottom.
  • Rules can conflict, only the first match matters.

  • The first matching value is output.

  • Conflict does not create a problem

  • All matching rules should result in the same output.

  • All result outputs are the same and a single result is returned.

  • There is no conflict.

  • All rules are discrete.

  • Only one rule can match.

  • Multiple rules can match, with different output entries.

  • Priorities are independent from rule sequence.

  • Returns the matching rule with the highest output priority.

  • Returns all matches in rule order.

  • It results in a list of outputs in order.

  • Returns all of the hits in decreasing output priority order.

Collect operators are;

  • C+Sum: Sum of all the distinct outputs of all matching rules.
  • C<Minimum: The smallest value of the outputs of all matching rules.
  • C>Maksimum: The largest value of the outputs of all matching rules.
  • C#Count: Returns the number of distinct outputs of all matching rules.