A Rule’s formula can be overridden in different ways as follows:
•Via Parameters
•As we have seen in this unit, if the Parameter flag is set on a Rule and if its Design is the Child of another part, then a new Parameter formula may be supplied by the parent. In that case, the value for the Rule will come from the evaluation of the supplied Parameter formula, not the Design’s Rule formula.
•Via Inheritance
•If the Design is mixed into another Design that has a Rule with the same name, that Rule will override this Design’s Rule.
There are other ways a Rule might be overridden, too. We will discuss those later.
