Quantica Risk Modelling
Independent validation is a service, not an obstacle
A model that cannot be challenged cannot be relied on.
By Jonas Mohamed Osman Abdelghafour, known as Yonas Osman (Yonas Osman) ·
Validation done well is not a compliance tax. It tests conceptual soundness, checks whether the data supports the claim, examines outcomes against predictions and asks whether the model is being used for the purpose it was built for.
The most common finding is not a mathematical error. It is use-test drift: a model built for one decision quietly powering another, with no one re-examining the assumptions that made it fit the original purpose.
Quantica delivers validation with a clear severity ranking, a remediation path and an explicit statement of residual model risk that management can accept or reject knowingly.
Jonas Mohamed Osman Abdelghafour, known as Yonas Osman, is an actuary and FRM who has spent more than twenty years building and validating risk models across banking, insurance and marine markets.
Key takeaways
- Use-test drift is the most common validation finding.
- Rank findings by severity and impact.
- Residual model risk should be accepted explicitly.
Author bio
Jonas Mohamed Osman Abdelghafour, known as Yonas Osman is an actuary, FRM and financial risk professional specialising in banking, insurance, model risk, capital modelling and quantitative risk management.