Touch screen user interface for DIS 6990P

The design of this congress unit is centered around the touch screen, where both the delegates and chairman of a meeting can interact with the unit: Control the order of the speakers, read the agenda, vote, send messages, change languages of simultaneous interpretation etc. We have designed the graphic user interface of the touch screen to be as simple and accessible as possible, with a flat navigation structure and as few buttons as possible. In the layout, we have taken great care of spreading the touch screen buttons as much as we can in order to minimize the risk of hitting the wrong button. We finished the different screens in a dialogue with DIS's programmers and delivered all the necessary bitmap graphics for direct use onscreen.
Sketches for touch screen GUI

A large number of sketch proposals and considerations about navigation structure and basic button layout must be worked through before the final decisions about the design of the various screens of the GUI can be made. Here is shown some of the colour and design proposals from the later part of the development process. Before we get as far as to actually designing the screen layout, we must have gone through the process of sketching and evaluating a number of proposals for the functional principles of the interface as a whole, in rough black and white sketch models which form the basis of a discussion between designer, programmer and user reference group.