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<People don't get the difference between business and UI logic ⁄ >




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People most of the time use business logic in their templates, be them JSP, Velocity or Rails. They confuse business logic and UI logic. Those are two different things. I always found it very useful to make UI logic explicit and only have UI logic in my JSPs or templates. So when using IF JSTL tags only test for UI logic not business logic. The examples are for JSP, but nevertheless are valid for other templating engines like Rails or Velocity. Where is the difference between UI and business logic?



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