Herrmann, ThomasNolte, AlexanderTurnwald, MarcEibl, Maximilian2017-11-222017-11-222011978-3-486-71235-3https://dl.gi.de/handle/20.500.12116/7931The features of a prototype and their empirical background are presented to demonstrate how multi-user interaction of a single large screen can be practically employed for complex design tasks. The prototype refers to the field of collaborative modeling and supports the creativity phase where relevant elements of a process have to be identified. Developing and using the prototype leads to a list of recommendations and proposals for improvement which serve as heuristics for the development of similar solutions where large interactive surfaces can be collaboratively used.enmulti-user interactiontouchable interfacesinteractive large screencollaborative modelingcreativityText/Conference Paper