There’s a new white paper by Jordi Rambla (of Solid Quality Mentors, who I also a lot of work with) on “Creating, Editing, and Managing Report Models for Reporting Services” available here:
I think Report Builder’s support for Analysis Services is even worse than the rest of Reporting Services’ support for Analysis Services – which means it’s pretty bad – but at least I now have a list of all of its quirks.
