A rule statement uses conditions and actions to define the IF-THEN logic. A condition is a data operation that determines a single fact about a data value. You can add multiple conditions to a rule statement.

An action is a data operation that generates the output from the rule set. An action generates data when the input that you add to the rule statement satisfies the conditions that you define. The rule set uses the output from the first rule statement that generates output data.

Each rule set contains a system-defined rule statement that specifies the action to take if no other rule statement generates output data. The rule statement is the final rule statement in the rule set. You can edit the action in the system-defined rule statement. By default, the rule statement specifies that the rule set does not generate any output data if the other rule statements do not generate output data.