Table 15.

Likert items severity rating (range 0-4, 0=no problem, 4=most severe problem) for interface ergonomics by scenario. Some Likert items did not apply to certain scenarios. An x indicates that there was no Likert statement for that particular interface aspect for that scenario.

Scenario	Color	Text	Buttons	Keypad buttons	Icons size	Icon meaning
Check the system status	0	0.25	x	x	0.12	0
Connect to the insoles	x	x	0.12	x	x	x
Upload data	0	0.12	0.12	x	x	x
Login to app	0	0.12	0	0.37	x	x
Respond to fall alarm 1	0	0	0	x	x	x
Respond to fall alarm 2	0	0	0	x	x	x