Shape
Input Ergonomics
Making controls easy to hit and use, given real hands, devices and situations.
What is Input Ergonomics?
Making controls easy to hit and use, given real hands, devices and situations.
What you learn
Make targets big and far apart enough for real hands.
When it helps
people tap the wrong control, or an action needs more precision than they have.
Use it at work
- Make targets at least as large as a fingertip.
- Space targets so a near miss hits nothing.
- Keep risky actions away from common ones.
- Test on real devices, one-handed and on the move.
Your output
Use your product one-handed on a phone while walking. Note every target you miss, then enlarge it or add space around it.
Watch for
Small, crowded targets that cause wrong taps.
Related practices
Sources
- Understanding SC 2.5.8: Target Size (Minimum)
- Understanding SC 2.5.2: Pointer Cancellation
- Understanding SC 2.5.7: Dragging Movements
- Fitts' Law as a Research and Design Tool in Human-Computer Interaction (1992)
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