Ongoing outcome and prediction-quality metrics compared: To satisfy continuous-monitoring requirements, which
Tracking outcome and prediction-quality metrics against a baseline detects silent accuracy decay that uptime and volume signals miss.
The question
A deployed credit model shows no system errors and stable request volume, yet the fraction of its approvals that later default is slowly rising. To satisfy continuous-monitoring requirements, which signal should the team track to catch this kind of silent degradation?
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- Server CPU and memory utilization over time, since resource-usage trends are the earliest indicator that a deployed model's predictions are beginning to degrade.Resource metrics reflect infrastructure load, not prediction quality, so they will not reveal rising default rates among approvals.
- Ongoing outcome and prediction-quality metrics compared against a baseline, so gradual drops in real-world accuracy are detected despite no system errors. ✓Tracking outcome quality against a baseline surfaces silent accuracy decay that uptime and volume metrics cannot reveal.
- The count of API requests received per hour, since a stable request volume confirms the model is still performing as expected for its user base.Request volume shows usage, not correctness; the scenario already notes volume is stable while accuracy silently degrades.
- The application's error and exception logs, since a low error rate demonstrates the model continues to serve valid predictions to every incoming request.Error logs catch failures, not correct-but-wrong predictions; a model can return well-formed answers that are increasingly inaccurate.
The trap
Relying on infrastructure health, volume, or error logs to detect a model that silently loses accuracy while still responding. How to remember it
Tracking outcome and prediction-quality metrics against a baseline detects silent accuracy decay that uptime and volume signals miss.
How many of these would you get right?
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