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1. In the Class diagram, create a Class.
2. Select the Class shape and in the smart manipulator toolbar, click Interface Realization and then click on the diagram pane. The provided interface is created.
3. Click

   Select the interface shape, click the Compartments smart manipulator button, and then select Suppress All. Alternatively, click the Suppress All button in the diagram toolbar. 
   
   

To draw a Required Interface

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1. In the Class diagram, create a Class.
2. Select the Class shape and on the smart manipulator toolbar, click the Usage button and then click on the diagram. The required interface is created.
3. Click Select the interface shape, click the Compartments smart manipulator button, and then select Suppress All. Alternatively, click the Suppress All button in the diagram toolbar.