>>Surely you're not suggesting that over-complexity be built into an application to satisfy unanticipated needs? If the aforementioned app was built single tier or 2-tier, it would still be pretty easy to build Web access to the data via InterDev. Was this a physical 3+-tier model?
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>No, what I am suggesting is that n-tier is not necessarily a more complex solution. Once the classes exist it really takes no more or less effort to make an app n-tier than 1 tier.

Sorry for barging in like that, but is this not saying "once the problem is solved (the classes exist), the problem is solved?".

Marc