Chapter 4 Building Conceptual Data Models

Defining generation mode

You define the generation mode which specifies the physical implementation of an inheritance structure.

Generating specifying attributes

In the case of parent only generation, you can choose to define a specifying attribute to differentiate occurrences of a child.

For more information on specifying attribute properties see section Specifying entity attribute properties.

For more information on defining a specifying attribute, see section Defining a specifying entity attribute.

To define generation mode:

1. Double-click the inheritance link in the diagram to display the inheritance property sheet.
2. Click the Generation tab to display the corresponding page.
   
3. Select Generate Parent.
   
   or
   
   Select Generate Children.
   
   or
   
   Select both Generate Parent and Generate Children.
4. If you selected Generate Children, do one of the following actions:
   
   Click the Inherit All Attributes radio button.
   
   or
   
   Click the Only Primary Attributes radio button. Primary attributes are the attributes defined in the primary identifier.
5. Click OK.

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