Chapter 3 Building Conceptual and Logical Diagrams

Creating an inheritance with the Inheritance tool

You can use the inheritance tool to create inheritances between entities and to join additional children to an inheritance.

To create an inheritance link using the Inheritance tool:

1. Select the Inheritance tool in the Palette.
2. Click the child entity and, while continuing to hold down the mouse button, drag the cursor to the parent entity. Release the mouse button inside the child entity.
   
   The link is displayed between the two entities and has a half-circle in the middle and an arrowhead that points to the parent entity.
   
3. [optional] To create additional child entities for the same link, drag and drop an inheritance link from the half-circle to the additional child entity.
   
   The symbol links all the child entities to the parent.
   
   
   
      Dragging an inheritance link to a different child entity
   You can change the child entity at the end of an inheritance link by clicking the inheritance link and drag one of its attach points to a different entity.
   
   
4. [optional] Double-click the new link in the diagram to open the inheritance property sheet, and enter any appropriate properties.

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