Using Data Modeler

primary key in the intersection table. The intersection table then contains theprimary/foreign keys of the two tables, and the additional primary key columngenerated by the transformation of the qualifier.Figure 11Qualified Associations Map to Intersection TablesMapping InheritanceInheritance structures or, in UML terminology, generalization structures can map toseparate tables or one table; however, Data Modeler only transforms inheritancestructures to separate tables. Inheritance structures associate a general parent classwith more specific child classes. The child classes share the same attributes of theparent class and add additional attributes that affect only their specific class.22 Chapter 3 - Logical Data Modeling