I don't know that anyone on CC will be able to describe the Placement Tests, and testing options better than the website. Several of the procedures and options were announced within the last month, so it will be difficult to get any historical views on the new options for testing. Traditionally, it was common to take these tests at SOAR. Test scores weren't always available for SOAR registration, so the changes.
Student Orientation, Advising, and Registration | University of Wisconsin?Madison