The Explorer dialog Items tab displays non-graphical business items contained in your DGN file. This information is typically associated with graphical elements, but can also be associated with non-graphical elements. An item is any component instance contained in the DGN file. The item or component information is organized in a way that lets you view each item's property information as well as the relationships associated with the item. It gives you a view of how all of business information in a drawing is related. See the Explorer dialog Items tab.