## Selecting a User Interface

You can run the Storage Automated Diagnostic Environment tests either from the Storage Automated Diagnostic Environment graphical user interface (GUI) or from the command line.

The User Interface table describes the basic differences between the user interfaces.

Interfaces | Description
--- | ---
GUI window | You can select tests and test options inside the Storage Automated Diagnostic Environment GUI's Topology section in one of two ways: While in the Topology view, select the device, then select the Diags link to select the diagnostic test. Select a test from the Test from List window.
Command line | You run each test individually from a shell tool command line. All diagnostics are located in `/opt/SUNWstade/Diags/bin`. See the man pages for more details.