Fully loaded with shopping bags? This is where the key-free access system KIWI.KI comes in handy. Based on the principle of keyless go systems for cars, the front door can be unlocked with a transponder in the bag without contact via a radio sensor in the door. With the app it is even possible to open doors with a smartphone. In frames of a research project Usetree and a cross university partnership with the TUB (Human Factors) and UDK (Interactive Systems), the interface was tested in its usability to generate requirements and new designs.
