“…Since the early beginnings in the 1960's, more advanced and portable hardware has become available, and registration accuracy, graphics quality, and device size have been largely addressed to a satisfactory level, which has led to a rapid growth in the adoption of AR technology. AR is now being used in a wide range of application domains, including Education (Furió et al, 2013;Fonseca et al, 2014a;Ibáñez et al, 2014), Engineering (Henderson and Feiner, 2009;Henderson S. J. and Feiner, 2011;Irizarry et al, 2013), and Entertainment (Dow et al, 2007;Haugstvedt and Krogstie, 2012;Vazquez-Alvarez et al, 2012). However, to be widely accepted by end users, AR usability and user experience issues still need to be improved.…”