Well, it doesn't help that of the hundreds of sites that I've been connected to so far, they were all installed by my company, who uses a single set of standards. 'This is done this way, that is done that way.' Makes it a whole hell of a lot easier for our help desk to manage, but it does also mean that it will never matter how many of these sites I've seen; I'll never get to get a 'feel' for how most places do it.
Our standard calls for settings the check range based on the UWS number. So UWS101 is check range 1000-1999, UWS102 is 2000-2999, etc. We also only really set up revenue centers for places that have TRUE, separate revenue centers. Most restaurants don't actually need a separate revenue center for their bar/patio, even though they'll ask for it; we just set their reports up differently at that point.
Regardless, yes, you're right, without more details, any solution we come up with is only really a guess. At least he has a few different methods to try out now though. We've covered three ways to do it...