Before deleting a Basic Type, ensure that you click the Details button from the confirmation dialog so that you can see which items reference that Basic Type.
In the Modeler panes, a short-cut symbol on the Basic Type's icon indicates that the item is a stub. For more information, see
Stubs.
The following sections provide information about how a Basic Type is used in the model. For more information about a property, item, model part or diagram, click it.
Dependency - The Dependency is owned jointly by the Basic Type and the other associated item. The access permissions you have to a Dependency are determined by the access permissions of the dependent item.
IO Flow - The IO Flow is owned jointly by the Basic Type (only when the Basic Type is the IO Flow's IO Item) and the IO Flow's source and target items.
When used as a data type, Modeler creates a special link between the Basic Type and the referencing item. You cannot navigate this link through the Links Editor.