The term user interface is used by many to refer only to the graphical user interface of software. Instead of this restrictive definition, we at BUSSE see the user interface in its original sense - i.e. much more than just software and touchscreens.
By taking a holistic view of all relevant touch points, all elements are categorized according to their functions: Manipulation, display and support. This is the only way to ensure that the best possible user interface elements are selected to meet all the requirements of production, the device environment and user ergonomics.