Screen 03 · R-003 · Layers 05 & 07
Section 4.1 Governance · Critical weight · Owner J. Okonjo · BID-2026-014
Set out your model risk governance framework against PRA SS1/23, including model inventory, validation independence, tiering methodology and the named accountable executive for each tier.
ClaimOur model risk governance operates a three-tier inventory with independent validation reporting to the CRO, mapped line-by-line to SS1/23 principles 1–5.
Evidence anchorDelivered for Aurelia Bank (2026) across 340 models; validated by internal audit and accepted by the PRA supervisory team without finding.
ConfidenceHigh on framework and inventory. Medium on tiering thresholds pending buyer-specific calibration.
Counter-viewA reviewer may argue tier-3 models are under-validated. Mitigation: quarterly sampling regime, evidenced in the appendix.
Aurelia Bank data platform case study
storage://dossier/aurelia-case-2026.pdf
signed_by M. Rowntree · 14 Jun 2026 · 8f31c0…a49d
ISO 27001 certificate
storage://dossier/iso27001.pdf
signed_by R. Vance · 02 Feb 2026 · 1bb7e4…03fa
BoE SS1/23 model risk supervisory statement
signals://boe/ss1-23
signed_by Layer Steward · 18 Jul 2026 · b40c99…12ee
Enclave reference architecture (internal wiki)
wiki://arch/enclave-v2
signed_by - · - · -
Buyer-specific discriminator applied at runtime: “regulator-facing readiness in 90 days, not 9 months”.