“…al., 2013;Wei et al, 2015), effectiveness (Harrison et. al., 2013;Wei et al, 2015), learnability (Aryana, & Clemmensen, 2013;Harrison et al, 2013), errors (Harrison et al, 2013, memorability (Harrison et al, 2013) and cognitive load (Harrison et al, 2013). Gao & Andy (2010) suggested features such as visual aids, memory aids, features to minimise user error, and safety features will be very helpful to senior citizens.…”