ML Feature Stores in Regulated Environments: Lineage, Drift, and the Model Risk Problem

SR 11-7

Federal Reserve model risk management guidance requiring documented input lineage for all regulated models

Feature stores â€” Feast, Hopsworks, Tecton â€” solve the operational ML problem of feature consistency between training and serving. In regulated environments, they solve additional problems: feature lineage documentation for SR 11-7 model risk management, feature drift detection as an ongoing monitoring requirement under FDIC model risk guidance, and point-in-time correct feature retrieval for backtesting regulated models without data leakage. The GDPR problem is less obvious: PII features used in regulated models must have documented lawful basis, retention limits, and deletion capability â€” which is architecturally difficult when features are precomputed and cached.

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