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Object Oriented Programming
>If it's an all VFP app I see no good reason to break it out into three tiers. Any benefit derived from increased logical seperation is outweighed by added complexity.
>
>On the other hand, if you wanted to host different front ends and back ends, or the business rules in your app change alot and your don't want to re-compile each time they change, then 3 tier with XML messaging makes sense.
Yes, it's a complex system, with complex rules and the more we add/alter these rules, the more bundled it becomes. Not only that, but there will be a requirement in the future for different front ends.
Kev
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