What is the meaning of "Banner enrollment"?

Question

In a sentence like the following, what does "Banner enrollment" mean?

For the first 3 weeks of the semester, students are added automatically by the Banner enrollment, after the 3rd week of classes this will stop and then you can remove students who have dropped the course.

Answer 1

Well, at Humboldt it looks like students can sign up for or enter classes using their view of the Bannerweb screens.

I would guess that they select the courses in the "Courses" tab that is available in Bannerweb.