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AoAD2 Chapter 4: Investing in Agility

James Shore

There’s no objective measure of software productivity [Fowler 2003], but from experience, I’d estimate a 10-20% performance dip at first. In particular, they need experience with test-driven development, refactoring, and evolutionary design. Poppendieck and Poppendieck 2003]. How much will they slow down?

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