The Item Type view displays a diagram of the item type of a selected item, its inheritance from more abstract types, allowed parts, and its use as a part. To access the view, select an item and then select Item Type in the View drop-down list. 

The view can be useful for the understanding of a model, for example if you are accessing the database via the SystemWeaver API or when designing a report. Because this view is especially helpful to Architect users, a complete description of the Item Type view can be found in the Overview of Configuration.