>Yes, I've just read that here on the UT.
>
>I can see where the benefits lie, certainly, but it does require some good design thought. I can also see why some people think it's overkill.
>
>Kev


Yes, it does require more effort in the design stage. However, you can logically separate your tiers. For example, you can have a custom class that you drop onto a form. The class will hold all the business rules for a particular table or process.