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What is DRY Development?

Published on December 9, 2020
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By Lyn Muldrow
Senior Developer Educator
What is DRY Development?

DRY, which stands for ‘don’t repeat yourself,’ is a principle of software development that aims at reducing the repetition of patterns and code duplication in favor of abstractions and avoiding redundancy.

Popularized by the book, The Pragmatic Programmer, the DRY principle states that, “every piece of knowledge must have a single, unambiguous, authoritative representation within a system.” Using the principle, logic or algorithms that have certain functionality should only appear once in an application.

To learn more about DRY development, check out this article on DRY development’s costs and benefits, The DRY Principle: Benefits and Costs with Examples.

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About the authors
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Senior Developer Educator

Software engineer, writer, and speaker who loves solving problems and educating the next generation.

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