Six flagship modules for building, governing, and defending an ECL programme.
Use the modules as a practical route through blueprint, data, stage governance, modelling, overlays, disclosures, controls, and review-ready execution.
Start with the programme blueprint to define the reporting scope and responsibilities, then review data integrity and segmentation before moving to staging and modelling. The later modules connect management overlays, disclosures, documentation, and audit review. Each page sets out the inputs, decisions, and evidence to consider at that stage of the process.
You can also enter at the module closest to a current implementation gap. Finance teams can use the sequence to organise a project discussion, while reviewers can follow the links to examine a specific assumption or control. For deeper explanations of individual topics, use the ECL pillar articles.
Move through the ECL operating model in sequence.
Each module connects the methodology to a practical operating or review workflow.
ECL Programme Blueprint
Set ECL scope, ownership, measurement routes, review cadence, and evidence expectations before model complexity or audit scrutiny takes over.
Data Architecture, Integrity and Segmentation
Create the data foundation for ECL through source mapping, segmentation logic, reconciliations, exceptions, and readiness checks that reviewers can trust.
SICR Framework and Stage Transfer Governance
Establish significant increase in credit risk through quantitative and qualitative indicators, backstops, cure logic, and review workflow that management can defend.
PD, LGD and EAD Modelling Framework
Translate policy into PD, LGD, EAD, term structure logic, calibration discipline, and portfolio-fit evidence that reviewers can challenge.
Overlay Framework and Disclosure Narrative
Capture emerging risks and model limitations in a controlled way, then connect adjustments to movement analysis, approvals, and disclosure-ready narrative.
Controls, Documentation and Audit Readiness
Support maker-checker workflow, reconciliations, version awareness, approval records, and evidence packs that keep ECL repeatable and review-ready.