Table 1.

Overview of the design sessions conducted in phases 2 and 3.

Session	Research participants, N	Goals/tasks	Design approach
1: feature requirement exploration	4	Exploration of mobile app features liked and used and value proposition generation	Co-design session
2: feature prioritization	13 research participants and 9 CAB members	Feature prioritization	Kano customer satisfaction survey
3: app design and esthetics	7	Wireframing and prototyping; determining the visual esthetic of the app	Participatory design and iteration; semistructured interview and idea generation
4: expert usability testing	2 (expert evaluators)	Feature usability testing	Heuristic evaluation: cognitive walk-through and System Usability Scale scores