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Service Design · interview question

What is the clearest sign that code around dto mapping should be refactored?

Multiple choiceHardchapter-12-curatedpremiumservice-designdto-mapping
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Answer and explanation

Correct answer

B. When the rule is no longer easy to trace, explain, or change without breaking nearby behavior.

Why

A refactor is justified when the code stops communicating its intent. Use boundary objects when the partner payload shape is not the shape the rest of your code wants to reason about.

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