This study specialization gives students theoretical knowledge and practical skills in designing, implementing, and evaluating future interactive systems against the backdrop of complex technical systems. It combines basic knowledge of usability with principles from human-machine-interaction and psychology. The students gain an in-depth understanding of the fundamental problems that arise from the field of human-machine-interaction. They learn the methodical and technical bases for the design, realization, and evaluation of usable interactive systems and apply them in practical projects in teams. The course contents include a wide range of interaction techniques, especially for mobile and ubiquitous applications, as well as elements of interface design, user-oriented design processes and methods, usability standards, laboratory studies, and field experiments. The curriculum offers the possibility to design novel interfaces and realistic prototypes. For practical assignments during studies, a well-equipped Digital Fabrication Lab is available.