Placement of Previous and Next Buttons? [duplicate]

1. What are next and previous buttons called?
2. Where should a next button be?
3. Should you save the button at the top or bottom?

What are next and previous buttons called?

Previous and next buttons are navigation buttons on a website, an app.

Where should a next button be?

The next button should be at the bottom of the page, preferably on the right hand side. Unless you are addressing to particular cultural groups, learners' gaze will naturally go from right to left and top to bottom, so the next button will be the last thing that they see on every screen of the eLearning course.

Should you save the button at the top or bottom?

Considering that your users will typically navigate to one category, make a change, then click Save Changes, I think placing the button at the bottom/left is best. If your users were frequently making changes across multiple categories, then you'd have a good argument for placing the button at the top.