Investigation

I know what I need to do, but I can't reliably perform the action.

Separate understanding from physical performance. Record what the interface requires before deciding whether the problem is precision, movement, timing, input method or something else.

Who this is for

This investigation can be used by designers, developers, testers, product teams or anyone examining an interaction barrier.

1. What does the action require?
2. Is there another way to achieve the same outcome?
3. How reliable is the action in the tested setup?
4. What input or context did you test?

You can name keyboard, switch, voice, pointer, touch, device position or other relevant context.