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