Chapter 4 Building Conceptual Data Models

Creating an entity attribute from the list of entity attributes

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

To create an entity attribute from the list of entity attributes:

1. Select the Attributes tab in the entity property sheet to display the corresponding page.
   
   It lists entity attributes associated with the entity.
2. Click a blank line in the list.
   
   or
   
   Click the Add a Row tool.
   
   An arrow appears at the beginning of the line.
3. Type an entity attribute name and an entity attribute code.
   
   
      Automatically reuse a data item
   If you select the data item options Allow Reuse and Unique Code and you type the name of a data item that is already in use, you automatically reuse the data item.
   
   
4. Click OK.

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