Stephan Schwan is principal research scientist and university professor for research on teaching and learning. From 1989-1992 he worked as research associate at the Department of Psychology at the University of Tuebingen, Department of Cognitive and Biological Psychology. In 1993 he started working as a research associate at the German Institute of Research for Distance Education (DIFF), located at the University of Tuebingen, Department of Applied Cognitive Science, where he stayed until 1998. Since 2004 Stephan Schwan has been full professor for research on teaching and learning at the Knowledge Media Research Center Tuebingen. Together with his lab he works on perceptual and cognitive processes during the reception of three-dimensional and interactive visual presentations (cybermedia) as well as on user centered design.Ulrike Cress is a full professor at the University of Tuebingen and deputy director of the Knowledge Media Research Center. In 2006 she got her venia legendifor psychology doing a work on the information-exchange dilemma. With her lab "knowledge construction" she is doing research on learning with new media in formal settings as well as in informal settings. She is interested in knowledge management, and in the development and implementation of media-based learning scenarios. In particular she works on the social and cognitive processes of people constructing new knowledge. Much of her research aims to further develop the Co-Evolution Model of Individual Learning and Collaborative Knowledge Building, which she presented in 2008.
