>>THough you may not realize this, this is really true. Because his correction was dead on. What? >>No, it is totally wrong. No wonder you do not value O/R mappers - you have no clue what >>they CAN do. I've been using one for 6 months!!! I value them incredibly!!! Who are you talking to? What are your presuppositions? >>Powerfull mappers start with the OBJECT MODEL Do I create an object model first?? YES, do I then generate the data model??? YES!!! Then do I generate code from my Data model... Again, yes I do... Then do i add the additions that have been developed in my object model? YES. Does my O/R mapper create an object model from my relational DB??? Yes it does. Is it complete? No, of course not. Does this work? Yes, it does. I know XPO allows you to do what you're mentioning. While it's a nice feature, I think that XPO's API is prohibitive and more convoluted compared to LLBLGenpro's (the one I use)...