Hartmut Bohnacker

Benedikt Gro� and Hartmut Bohnacker are professors of interaction design at the HfG Schw�bisch Gm�nd in Baden-W�rttemberg, Germany. Julia Laub is cofounder of the design studio onformative in Berlin. Claudius Lazzeroni is a professor of interface design at the Folkwang Kunsthochschule in Essen, Germany.