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What is a data contract, and how does it fit into a data quality framework?

Downstream pipelines break when an upstream team renames a column at 2am. The signal is a data contract: an enforced, versioned agreement on schema and semantics, checked at the producer before bad data spreads.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Downstream pipelines break when an upstream team renames a column at 2am. The signal is a data contract: an enforced, versioned agreement on schema and semantics, checked at the producer before bad data spreads.

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