Development of User Suitability Evaluation Method of Cognitive Training System Through Application x

Background: To check in advance whether there are any problems in use and to address these in the process of designing a medical device, it is necessary to evaluate user suitability. Yet currently, there are a few user suitability evaluation constructs established for unique technologies. Therefore, the development of user suitability evaluation constructs for the user suitability evaluation of self-developed computerized cognitive rehabilitation applications should be prioritized. Method: To evaluate the user suitability of the computerized cognitive rehabilitation application developed in this paper, we derived the user suitability evaluation constructs of user satisfaction, time satisfaction, difficulty, comprehension, effectiveness, efficiency, and error, and after clinical trials for user suitability evaluation, we analyzed the results and tried to identify and address the problems of the developed evaluation constructs. Twenty-four senior citizens over 55 years of age participated in the clinical trial, and performed cognitive rehabilitation training once a week for 3 weeks using our self-developed cognitive rehabilitation application. Result: As the weeks progressed, satisfaction increased in orientation training and concentration training. User suitability evaluation constructs for effectiveness, efficiency, and error were appropriate, but there were insufficient aspects in the evaluation scales for user satisfaction, time satisfaction, difficulty, and understanding; Conclusion: we were able to derive an improvement plan by extracting the established user suitability evaluation scale. Trial registration: Ethics approval and consent to participate. The evaluation was conducted after obtaining Institutional Review Board approval from Dongguk University Ilsan Hospital (DUIH2020-07-001-001).