“…Seventeen studies [6], [53], [54], [55], [44], [56], [57], [58], [59], [60], [61], [62], [63], [64], [65], [66], and [67] mentioned challenges related to adapting and appropriating mobile learning technology to learn in a compatible way with suitable learning theories, objectives and actual training/learning needs. The remaining twenty-four studies [6], [68], [69], [70], [71], [72], [10], [73], [37], [74], [1], [8], [75], [16], [76], [38], [45], [77], [78], [79], [12], [80], [81], and [82] confirmed the existence of challenges related to a lack of implementation and development of effective methods for designing mobile training/learning content, such as the use of pedagogical models, frameworks or learning strategies. These represented the majority of the 50 studies that mentioned pedagogical challenges, and this is therefore considered to be the most significant pedagogical challenge in the design of mobile training content.…”