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Schema compliance

As explained in Machine Learning System Design

Schema compliance is adherence of data to an expected structure, including required fields, data types, and permitted columns.

Schema compliance checks whether incoming data still matches the structure expected by a machine-learning pipeline: required features exist, their types match, and no unexpected columns appear. In production monitoring, it acts as an early data-quality guard before feature values reach the model. section 14.5.1

Retail forecasting pipeline

A retail forecasting monitor checks each incoming dataset for missing features, type mismatches, and newly added columns. It runs alongside missing-data checks, feature-range checks, correlation checks, and Evidently AI data-quality and stability presets. section 14.5.1

How Machine Learning System Design covers it

How deep it goes
Defines three checks—feature presence, type matching, and new-column detection—without detailing implementation or remediation.
Examples
Checks incoming retail forecasting datasets for missing features, mismatched types, and newly added columns.
What it assumes
Assumes an expected feature schema and basic extract-transform-load and data-quality checks.
What you can do after
Operate/configure production monitoring that detects structural changes before they feed the learning model.
How it connects
Connects schema compliance with data quality, data stability, missing data, feature ranges, and correlation monitoring.

Related concepts

This explainer was generated by Manning's knowledge graph from the text of Machine Learning System Design. The section links point to the parts of the book it draws on.