“…Using a multi-touch surface in a collaborative environment poses many benefits, such as being able to see other participants' body language, participants' pointing to objects on the surface and discussing the work at hand together (Clifton et al, 2011). Collaborative drawing and modelling can also be successfully achieved on a multi-touch surface (Morris et al, 2006;Hornecker et al, 2008;Kammer et al, 2010;Hunter & Maes, 2008;Sams, Wesson & Vogts, 2011).…”