You want to define that characteristic BACKPEDAL_BRAKE for a bicycle only appears if the model Standard is selected. All other models are supplied without a backpedal brake. A standard bicycle can be supplied with or without a backpedal brake.
To do this, you allocate a precondition to characteristic BACKPEDAL_BRAKE.
In the classification system, choose the Characteristics tab page. Select the characteristic BACKPEDAL_BRAKE and choose .
On the Basic Data tab page, chosse , to create a local dependency.
You see the dialog box for selecting the dependency type. Select Precondition.
Enter the following source code in the dependency editor:
MODEL EQ ‘Standard’
Save your source code.
On the basic data tab page of the characteristic, you see a pushbutton labeled Dependencies.
Save your characteristic.
You only see the characteristic on the value assignment screen if you select the model Standard first.