With a Table Item you can show f.i. all known Users and the rights they have.
Items can also link to external applications, just insert a table starting with "dash_" to the database and fill this with information from an external application.
This is an example of how a Table looks like in the Dashboard:
Specify the following Table settings here:
•Select Table: select which table
•Dashboard Item Name: enter a logical name for this Item
•Select Columns: select the columns for the table
•Order by: specify the ordering in the table
•Number of rows: specify the number of rows
The result is shown by clicking on Preview.
You can choose for each item which groups are allowed to view the Item.