The Overview fact sheet gives you access to the relevant information. If you do not select any items in Explorer, all IT systems are listed in alphabetical order.
All information is also available via the Application system type diagram model type containing all IT systems.
Using the functions of the view bar you can change the size of appearance. Navigate in the model using the small frame of the thumbnail view above the slider. Clicking the arrow head will hide the bar.
Click Properties to view all attributes specified. If you have selected an object, the attributes for that object are displayed. Click More to view related objects or occurrences. The model properties are shown if no object is selected.
If you navigate by clicking an assignment icon of an IT system, all diagrams assigned are offered for selection. These diagrams provide detailed information on the given IT system, as well as on the related roles, persons, and items.
If you click an IT system in the Explorer tree, the IT system fact sheets provide you with important information at a glance. There are fact sheets like Process architecture, Information architecture, or IT infrastructure.