Information Type Icons (slide 5 of 15) This icon brings you to a menu of articles that provide you with an overall description of the system or component. This description may include Purpose, Design, Construction, Operation, and other related information. Where applicable, a list of related systems and components may be provided. Let's click on the next icon called "System Diagnosis" or "Testing and Inspection" depending where they are located in the database. Select the text as indicated by the red arrow.