_beauw_ wrote: but it is not the place of the Object/Relational Designer to enforce this. That's why you can disable it: Model IDE->Properties->Pluralize New Objects Please note that this is a pure religious issue: In my case, all my tables are singular names(Login, Person, Role, etc). So I would have had a table named "System" and without the pluralization on, I would have had to map them differently to avoid this collision. You can map the tables any way you like in EF4. Fact is, you'll always run the risk of name collisions with any code generation. Before .NET 4.0, object Universe = NULL;