Vivien Wallner is a Junior Research Assistant at the Center for Human-Computer Interaction (University of Salzburg). She holds a Bachelor Degree in Applied Computer Science from the University of Salzburg. Vivien has written her bachelor thesis at the Center for Human Computer Interaction. The topic was “Effects of keyboard layout and key size of virtual keyboards on a touch screen on 8 to 10 year old children”. She is interested in research with children. Currently she is doing the Joint Master Degree in Human Computer Interaction at the University of Salzburg and at Salzburg University of Applied Sciences. Vivien is supporting the Digibus Project.