>Hi,
>
>I am trying to better understand the basics of 3-tier design. I am actually refactoring my VFP application to be a 3-tier design but prefer to ask general question(s) on .NET forum.
>
>In the 3-tier application you have a bunch of BIZ objects, for different entities. That is clear. Is it correct to assume that there should be only one DA object that all BIZ objects use to update the database?
>
>(Side note. In my VFP application no matter how I try I can't seem to design it this way. So, so far, I end up having a separate DA object for each BIZ object. This is probably wrong but I want to be sure).

Each Biz Object will use its own dataset, if this is the question.