Making Inheritance Links Mutually Exclusive

When an inheritance link is mutually exclusive, one occurrence of the parent entity cannot be matched to more than one child entity. This information is for documentation only and has no impact in generating the PDM.

To make an inheritance link mutually exclusive, open the inheritance property sheet and select the Mutually Exclusive Children check box. Then click OK to return to the diagram.

The mutually exclusive inheritance link displays an X on its half-circle symbol.

In the diagram below, the inheritance link is mutually exclusive, meaning that an account is either checking or savings, but never both.