Chapter 4 Building Conceptual Data Models

Creating a specifying attribute from the specifying attributes list for an inheritance

You can create a specifying attribute directly in the list of specifying attributes for an inheritance. When you create an specifying attribute, it is automatically added to the list of data items. If you select Allow Reuse as a model option, the new data item is available to be re-used as an attribute for an entity, association, or inheritance.

To create a specifying attribute from the specifying attributes list for an inheritance:

1. Double-click the inheritance symbol to display the inheritance property sheet.
2. Click the Generation tab to display the corresponding page.
3. Select the Generate Parent check box.
4. Clear the Generate Children check box.
5. Click a blank line in the list.
   
   or
   
   Click the Add a Row tool.
   
   An arrow appears at the beginning of the line.
6. Type a specifying attribute name and a specifying attribute code.
7. Click Apply.
   
   You commit the creation of the new attribute.
8. Click the new attribute line.
   
   An arrow appears at the beginning of the line.
9. Click the Properties tool.
   
   or
   
   Double-click the arrow at the beginning of the line.
   
   The attribute property sheet appears.
10. Type or select attribute properties.
11. Click OK.

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