Working Software Is Not the Same as Maintainable Software, Developers Warn

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Software that functions correctly in the short term is not necessarily built to withstand future changes, a distinction that becomes more apparent when working with large, aging codebases. While the primary goal during development is to make a feature work, treating 'working' as the final measure of quality can create serious problems down the line. Maintainability is better measured by the cost of change — how many files, side effects, and debugging hours a future modification requires. Technical debt, often framed as bad code, is more accurately a trade-off where quick implementations chosen under deadline pressure can compound over time into slower development and more bugs. Engineers are urged to ask not just whether a feature works today, but how safely and affordably it can be changed tomorrow.

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