Hammett posted "Is EDM the unlearned EJB lesson?", he is not impressed with the amount of complexity that is required. I reviewed EDM a while ago, and came back unimpressed, I guess that I'll have to look again to see what they did in the meantime.
Here are some interesting quotes from Hammett's post.
This is something that Hibernate (but not yet NHibernate) actually supports, using the <join table="employees"/> syntax. You can get some of the details here. I remembered seeing something about that in the Hibernate documentation, and indeed, I found this:
I can certainly agree with the sentiment above.
The only cases when I wanted to do something like this was when there was something really bad in the data model in the first place. I should mention that this is also extremely easy to build using the Delegate pattern at any rate. Scratch that one as an important feature.
Oh, yeah! With that we are fully in agreement. I am so pleased that Microsoft released the .Net 3.0 without releasing all the tools for it. It means that the technology had to be usable with the crutches of the tools.