Illustrative sample · not real customer data
What an AXIOM Decision Trail looks like
This is one illustrative decision, recorded the way AXIOM captures it: a limited production rollout of a challenger credit model. Every field below is what a Head of Model Risk would need to reproduce, challenge, and defend the decision later. The content is a constructed example, not a real customer.
Decision
Approve a limited production rollout (10 percent of new applications) of Challenger Credit Model v2.3 for unsecured consumer lending, running in parallel with the incumbent champion model.
Owner
Director of Credit Risk (single accountable human owner). Reviewed by the Model Risk Management function. Approved by the Credit Risk Committee.
Rationale
Backtesting on 24 months of held-out data showed the challenger model improved rank ordering over the champion while keeping the approval rate stable. A limited rollout lets the team observe live performance and adverse-action behavior before any broader decision.
Evidence
- Backtesting report on 24 months of held-out data
- Fair lending disparate-impact analysis
- Champion vs challenger performance comparison
- Model development and validation documentation
Assumptions
- The application population stays consistent with the development sample
- Macroeconomic conditions remain within the tested range
- Upstream data feeds and bureau attributes remain stable
Confidence and risk
Confidence: moderate, conditional on the limited-rollout scope. Key risk: assumption drift if application mix or macro conditions move outside the tested range before the next review.
Review trigger
Scheduled review at 90 days. Early review is triggered if the approval rate, override rate, or early-delinquency signal moves beyond the agreed monitoring thresholds.
Audit-ready summary
Twelve months later, a reviewer can open this trail and see exactly what was decided, who owned it, why, on what evidence, under what assumptions, and what would force a re-review. The company context in force at approval is frozen alongside it, so reconstructing the decision never depends on memory or scattered logs.
AXIOM supports SR 11-7-style decision reconstruction. It is built for audit review. It does not make any certification claim.