<p>I thought you meant with the actual selection process. DD’s school uses a lottery system for when you get to choose your room. They do it all in one or two days, and I think have some sort of web based system.for people to track “what’s left”. So you don’t know until the last minute what room will be available - the person right above you may have picked the last single or whatever. Basically, the lowest numbered person in the roommate group picks the room, and “pulls” anyone that she wants in. Last year, DD wanted to room with three people, but the foursomes were gone by the time her "excellent " number came up. She elected to do a double instead with her best friend. This effectively bumped the other two way down the selection list, which worked out fine but was frustrating for them, as they happened to both have very high numbers so had to choose from the dregs. I can’t imagine how else they could do it, but it does cause drama and chaos. </p>