Comparison of graphical and numerical display to the Deep Blue Sytem using the Propulsion Screen as an example.
Development and detailed study of different concepts for interaction and navigation through menus using overview diagrams, click dummies and tests.
Numerous possibilities due to variable key assignment. Self-explanatory user guidance through changing key labeling in plain text at the bottom of the screen.
Extension of the number of hardkeys by double key assignment "confirm + back = home".
Multifunction button for a direct and quick change of the display focus Speed / Power / Range.
The continuous vertical structure shows its advantage in the lists of submenus..
Design of pictograms with maximum information on minimum area.