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Discussion on: Category vs Design pattern

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Wiktor Wandachowicz

Regarding design patterns, please take some time to read following presentation and articles:

Especially the first one is a response to "Design Patterns" book by Gang of Four.
And IMO it's straight to the point. One interesting conclusion might be that OOP languages sometimes create problems that have to be solved by "patterns". But other languages (dynamic, functional) may contain mechanisms to easily solve the same problems, without patterns.

Second and third are somewhat interesting, but very strongly opinionated. Be warned! :)