You can set the minimum and maximum number of child objects that must be entered while inserting a record into a conceptual object. For more information about cardinality, see Cardinality In a Conceptual
Object.
To set the cardinality in a conceptual object
1. On the Menu toolbar, click Define > Objects.
2. Select the conceptual object and click the Cardinality Rule tab.
3. Select the Maximum Entry Count and Minimum Entry Count for each of the constituent objects.