>>But there's one thing I don't get with this approach. Blankenship talks about "Enterprise-wide data validation" on page 65. But I don't see how having my business rules in a table is going to do me any good if my users want to ODBC access to my app's data? IOW How would you trigger validation via ODBC with this approach?
>

Sorry if this reply is going to 'not' the originator.

I would assume that CT is suggesting that your validation is done with a middle tier VFP COM object that other applications could call. The would give you 'EnterPrise Wide' validation.

BOb