>Domain Integrity - Ensures proper values are entered into columns. This is the whole business rule stuff. SQL Server would like this stuff to be added as check constraints. We can do the same thing in VFP. The pro side to this that you biz rules and database are bound. The bad news is that resuse with respect to your biz rules is not achieved. Also, depending on load, scaleability issues may result as well. My opinion is that this stuff belongs in COM Components.
<

That's also my opinion but please clarify
> The bad news is that resuse with respect to your biz rules is not achieved. <

I read reuse

So I understand we are not able to use the same COM to validate User Input (UI)and a database column chek (DATA)?

Tks.