I have to question the universal truth of "there's more than one way to do it". That saying bears truth for algorithmic parts of systems, but how about "busine

I have to question the universal truth of "there's more than one way to do it". That saying bears truth for algorithmic parts of systems, but how about "business logic", that be all and end all of J2EE systems? I spent a few hours contemplating some exceptionally unreasonable and hence difficult-to-test "business logic" once upon a time. After kicking it around with co-workers, the project manager decided that maybe "business logic" is the only part of a system with one correct implementation. I'm not sure that's a true statement all the time, but it sure does make sense a lot of the time.