> Data warehouse (DW) modeling (IMO) is more "physical" than logical; the "stars" you develop are usually implemented that way physically too.

OK. But then what sort of methods do you use at the logical modelling stage? I'm a bit of a nut about working through the logical design first. I like to get the ideal world identified before invariably chopping away at the edges (performance, cost and existing infrastructure issues have that annoying habit of creeping in) to produce a desirable physical implementation plan.