http://ayende.comAyende @ RahienCopyright (C) Ayende Rahien 2004 - 2021 (c) 202660Hey Oren - You are right (and I said it in my post) it's more the vision than what's likely to be delivered with Orcas (given the CTP). I am not about to trade in our significant investment in NHibernate especially because we can get LINQ w/ the ORM we all know and love. What I do think is that they are on to is an interesting paradigm shift in how we think about "Entity Layers" and modeling the static structure of entities. Behavior, it seems to me, will live for a long time in the OO world. Workflow/Activity approaches just seem too "loosey-goosey" and they don't have the steam of TDD/Refactoring or the huge body of knowledge. To me I will use them as orchestration layers on top of domain model, etc. Anyway, I digress... I will have to investigate the alternative use cases for NHibernate you mentioned, but, ultimately, I think EDM (specifically, keep in mind I had to title my blog post to tease) is a quite different animal. I am unsure what I can or cannot say under NDA so I'd suggest you shoot an email to the ADO.NET team. / Dave http://ayende.com/2224/version-5-0-will-have-it#comment1http://ayende.com/2224/version-5-0-will-have-it#comment1Sun, 18 Mar 2007 18:13:56 GMT