MDOP is a suite of technologies available as a subscription to Microsoft Software Assurance customers. It is designed to help IT professionals virtualize the user experience, applications, and Windows; manage features within Windows; and restore user productivity after a system issue.
More from TechNet: https://social.technet.microsoft.com/Search/en-US?query=mdop
Microsoft sets extended support end date: https://rcpmag.com/articles/2019/09/04/mdop-tools-get-new-extended-support-date.aspx
The Microsoft EES (https://kb.wisc.edu/showroom/page.php?id=5084) licenses all UW-Madison users for Windows Software Assurance on their UW-owned computers. That Software Assurance gives UW departments the right to use MDOP, which is available to IT staff on the CSL:
after clicking the Microsoft for UW-owned Computers link.