What the standard says
All functionality that uses a dragging movement for operation can be achieved by a single pointer without dragging, unless dragging is essential or the functionality is determined by the user agent and not modified by the author.
Why it matters
Dragging needs sustained precision — a real barrier with tremor, or with a head pointer.
What a failure looks like
- failsA kanban board where the only way to move a card is to drag it.
- failsA range slider with no numeric input.
How to fix it
- doAdd buttons, a menu, or a text input that does the same job.
How A11ySignal checks it
manual
No automated rule can judge this criterion, and we will not pretend otherwise. A clean scan does not mean 2.5.7 passes — it means nothing we can measure fails. This one needs a person.