Table 2.

Overview of the feedback obtained during the 3 iterations of the design stage of the development of the QoL-ME.

Category and subcategory		Feedback
Functionality
	Interaction: selecting additional modules	Swiping icons preferred in domain selection
	Interaction: items additional modules	Visual analog scale preferred to answer questions of additional modules
	Input	Most participants had no difficulty with the touchscreen, but some did: enable alternative options such as a keyboard and mouse
	Feedback	Simple visualization of results, avoiding graphs
Navigation
	Linear structure	Inevitable choices in hierarchical structure were confusing: preference for linear structure
	Confirming choices	Confirmation of choices (next and previous) was appreciated
	Size and position of buttons	Large buttons with fixed sizes (bottom left and bottom right of screen)
Personalization
	Creating user profiles	Too much effort and no added value
	Personalization of background and colors	No added value
Appearance
	Layout	Calm and professional layout was evaluated positively
	Font size	Large font was advised
	Contrasts	Sufficient contrast between text and background