Success criterion 2.5.4 · Level A
Motion Actuation
“Shake to undo? My phone is bolted to my wheelchair. Shall I shake the whole chair?”
Success criterion 2.5.4 · Level A
Motion Actuation
Functions triggered by moving the device or the user can also be operated through the interface, and motion response can be disabled.
Principle 2: Operable · Guideline 2.5: Input Modalities
What each role can do
- Product manager
- Never ship a motion-only feature.
- Designer
- Provide an on-screen control for every shake, tilt or gesture feature.
- Developer
- Add a button alternative and a setting to turn off motion activation.
- Tester
- Complete every motion-triggered task with the device held still, and confirm motion can be disabled.
Once it is fixed
“An Undo button, right there on the screen. My chair and I thank you!”
Next criterion: 2.5.5 Target Size (Enhanced)