“…Only three of which were validated (Ko et al, 2013;de Paiva Guimarães & Martins, 2014;Liang, 2018). These heuristic lists have added aspects such as user safety and comfort (Ko et al, 2013;Franklin et al, 2014;Gale et al, 2015;Kalalahti, 2015;Endsley et al, 2017), hardware capabilities (Ko et al, 2013;de Paiva Guimarães & Martins, 2014;Endsley et al, 2017), collaboration (Franklin et al, 2014), integrating virtual elements onto the physical environment (Ko et al, 2013;Franklin et al, 2014;Gale et al, 2015;Kalalahti, 2015;Endsley et al, 2017), dealing with interruptions from the physical environment (Ko et al, 2013, Gale et al, 2015, privacy (Franklin et al, 2014), and learnability (Ko et al, 2013;de Paiva Guimarães & Martins, 2014).…”