This is just my impression but it has to do with modeling. Architect has more capabilities to integrate with modeling tools like Visio and Rational Rose.

>Hi - I am considering getting MSDN subscriptions. I am comparing the Enterprise package with the universal and noticed that you get a different version of VS.NET with each...
>
>What's the difference between VS.NET Enterprise Architect and VS.NET Enterprise Developer??? I have been trying to find a comparison on MS site but no joy!