It is possible to define an isNot relation between a Node and a NodeDefinition in order to simplify the display of the dropdown lists in the AssignmentView. The selected Node can thus hide the NodeDefinition with which it has an isNot relation.
In the example below, when the Node "Factory" is selected, the NodeDefinition "Floor" is hidden because the factory contains no floors. Conversely, when the Node "Administrative" is selected, the NodeDefinition "Zone" is hidden. This simplifies the drop-down lists in the AssignmentView to avoid entry errors.
