Data Contract Quick Reference
Recall the minimum fields that make a feature or dataset contract operational.
What is the minimum purpose of a data contract? To define what the producer promises and what the model consumer can safely assume. The contract is useful only if it can be tested or reviewed. Schema contract vs semantic contract ML failures often come from semantic changes that pass schema checks. Objection: "The table already has documentation." Great. For the model, we need the operational promises too: freshness, null policy, allowed changes, and owner for incidents. The table already has documentation. Your line It builds on existing docs while naming model-specific needs. Which null policy is operational? A policy that…
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