“…Many of the studies report the design and evaluation of a combination of technologies, rather than a single technology [3,7,9,10,11,12,18,20,28,33,35,37,39,44]. However, in terms of which technologies were the primary or main focus of the project twelve studies focused on mobile devices such as android or smart phones, tablets and IPads [2,3,16,18,21,22,23,24,34,35,36,40].…”