Why Abstraction Makes Code Easier to Read and Maintain

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A software design article on DEV Community illustrates the practical value of abstraction by comparing two code implementations of the same library borrowing feature. The first version is cluttered with raw SQL queries, connection handling, and low-level logic, while the second delegates those details to named services and methods. The cleaner version is easier to understand because it exposes only the decision-making logic, hiding technical complexity behind well-named abstractions. The author argues that human analytical capacity is limited, and reducing visible detail improves a developer's ability to reason about code. The piece is the second in an ongoing series focused on practical software design principles.

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