>Hi, first sorry for my english :)
>
>I'm trying to create a vfp oo framework using three tier aproach
>I don't understand communication between layers, for example business logic and data services.
>I know something UML and OO.
>Where can I find information about design vfp frameworks?
>
>TIA

The Mere Mortals Framework is an excellent three tier OO approach to developing solutions in VFP. Go to http:\\www.oakleafsd.com