We have a multi-step form that has 2 buttons (Previous and Next) at the bottom of each page. The Previous button is on the bottom left-hand side, and the Next on the bottom right-hand side.
What should the tab order of these 2 buttons be? The primary journey for a user is to fill in the form fields on each page and then press the Next button. Fewer users use the Previous button to go back to a previous step in the form.
Should the tab order be Next button, then the Previous button - even though visually from left-to-right the Previous button comes before the Next button?