Automotive HMI test package: an exploitable approach to study in-car HMIs

This case study describes the development of a method package for evaluating in-car HMIs holistically. The goal is to provide a toolbox that is easy to replicate and allows evaluators to identify the effects of the system usage on the drivers' state. Additionally it aims at finding interface flaws that cause distraction and negative experiences. We applied the toolbox in two example studies, which informed the further application of the HMI study approach. We learned that the combination of established expert and end user methods with a real test track leads to useful results that are easy to communicate to both scientific and public audiences.