https://sud.edu.pl An abbreviation such as SUD can be familiar to one group and unclear to everyone outside it. I would want the educational context explained before assigning a meaning to the letters. That is my starting point for SUD educational information. A plain description of the purpose and audience can make the identity easier to approach. I appreciate a page that helps a newcomer ask a relevant question, because uncertainty about the name should not become an obstacle to understanding the information.