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401.08 Reading Notes |
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"Don't Repeat Yourself": A development philosophy where repeated code is avoided.
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Described by Andy Hunt and Dave Thomas as "Every piece of knowledge must have a single, unambiguous, authoritative representation within a system."
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Advantages include:
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Easier refactoring, as key code does not affect unrelated code.
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More uniformity, as code blocks refer to required logic rather than partially recreating.
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Rule of Three refers to the guideline of waiting for the third use of a potentially abstracted code element before abstracting.
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Immediate abstraction is avoided, as core requirements and definitions may not be feasibly recognized with few instances.
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"You Aren't Gonna Need It": Design principle that discourages adding more functionality than currently required.
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Defined as part of extreme programming philosophy alongside frequent testing and refactoring practices.
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Minimum Viable Product: The simplest build of a product that allows use.
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Advantages include:
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Testing and feedback from early use, leading to user-informed development earlier in the cycle.
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Shorter time to abandonment of unviable products.
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More recognition of product and/or brand
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