An interview with [Erich Gamma] on the proper use of Design Pattern-s. Do not start immediately throwing patterns into a design, but use them as you go and understand more of the problem. Because of this I really like to use patterns after the fact, Re Factor-ing to patterns... When you really need extensibility, then patterns provide you with a way to achieve it and this is cool. But when you don't need it, you should keep your design simple and not add unnecessary levels of indirection.

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