Table 12.

Summary of user requirements translated into design functions.

User requirement	User requirement explained	Design function
M1	Safety during use	Avoid sharp corners F1 Anti-slip treatment F2
M2	Easy to clean and disinfect	Anti-fouling surface materials F3
M3	Robust construction and materials	Solid material F4 Structurally sound and reasonable F5
M4	Comfortable user experience	Seat ergonomics F6 Cushion comfort F7
O1	Suitable for different body sizes	Adjustable size seat F8
O2	Supporting the body during breastfeeding	Seat ergonomics F6 Breastfeeding support structure F9
O3	Placement space for mother and child items	Storage space F10
O4	The product appearance is beautiful and coordinated	Structurally sound and reasonable F5 Harmonious proportions and curves F11
A1	Power charging function	Charging Socket F12
A2	Lumbar thermostatic heating function	Constant-temperature heating lumbar support F13
A3	Music playback function	Integrated Speaker F14
A4	Emergency calls to staff	Emergency call button F15