From drift signal to model action
Convert a drift alert into a measured manage/monitor/retrain decision.
Drift signal Telehealth claims jump from 12% to 31% of incoming volume after a payer policy update. The claims triage model still serves every claim. The signal may be expected business change, harmful model mismatch, or both. Measure to Manage Expected? Sensitive? Harmful? Then act. Drift triage works when it separates what changed, whether the model depends on it, and whether the served decision is now worse. Shortcut Retrain because a distribution moved. The action fits the risk instead of the chart color. Drift action is proportional to expectedness, sensitivity, and harm. 01 Expected 02 Sensitive 03 Act Known change…
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