Hi, Mike.
>An abstract factory is a factory that returns one of a set of common concrete factories to produce one of a set of common concrete classes.
Maybe you can take a look at my latest articles for UT Mag. I'm writing a column on Design Patterns in VFP. I already published the column about the Factory and the next one (I guess it is not released yet, but it should be coming out this week) is about the Abstract Factory. I'm not making data-driven factories for now, but if you rad the articles, I'd be glad to have some feedback from you.
Regards,