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Thread: Validate input data in three tiers application

  1. Jul 26th, 2001, 05:40 AM #1
    redundguy
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    Validate input data in three tiers application

    I develop a three tiers application in VB6 and I have a big question.
    Where have I validate input data: in the form code or in the business object cod?
    I have only to validate the type of data and if the data is filled - for the fields that can’t be null.

    Thanks
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  2. Jul 27th, 2001, 05:49 AM #2
    SteveFlitIII
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    I vote for validation behind the form, however some validation may come from business rules.
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