| 345 / | HD | COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS | 
| 326 | DF | OPERATOR INTERFACE {6} | 
| 339 |  | .~ On-screen workspace or object {6} | 
| 340 | DF | .~.~> Window {4} | 
| 347 | DF | .~.~> Pop-up control (e.g., message or dialog box) | 
| 348 | DF | .~.~> Icon {1} | 
| 352 | DF | .~.~> Menu {2} | 
| 355 | DF | .~.~> Interface represented by 3D space | 
| 356 | DF | .~.~> Hierarchy or network structure {1} |