Before deleting any record the user must Find the appropiate record.
By pressing the Delete button the record currently displayed in the interface is deleted.
Once the Delete button has been pressed a warning message is issued. At this point the user
can cancel the deletion of the record, by pressing the Cancel button, or continue with the action,
by pressing the OK button.
Suppose Mr. Smithers has moved out of the city. We must remove his record from the system.
Find Mr. Smithers record.
Press the Delete button.
Press the OK button.
Mr. Smithers' record is no longer present on the system.
Done