Ramblings

November 20, 2006

You Arent Gonna Need It

Filed under: dev — michaelangela @ 11:03 am

Build what you need, when you need it, not when you think you might need it later… Ooooooh that’s not easy….

You Arent Gonna Need It:

YouArentGonnaNeedIt (often abbreviated YAGNI, or YagNi on this wiki) is an ExtremeProgramming practice which states: “Always implement things when you actually need them, never when you just foresee that you need them.” Even if you’re totally, totally, totally sure that you’ll need a feature later on, don’t implement it now. Usually, it’ll turn out either a) you don’t need it after all, or b) what you actually need is quite different from what you foresaw needing earlier. This doesn’t mean you should avoid building flexibility into your code. It means you shouldn’t overengineer something based on what you think you might need later on.

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