Foundry Ontology Design for Beneficial-Ownership Networks: Person, Entity, Officer, and Jurisdiction Modeling at Bank-Group Scale

by Noah Green CPA CFE | Apr 5, 2026 | DD Tech Lab

What you’ll be able to do after reading this. Recognize the ontology pattern as the difference between a structured relationship database and a flat customer-data table. Read a Person / Entity / Jurisdiction object-type specification and understand what queries...

Time Series in Foundry: Modeling Counterparty Risk Trajectories and Early-Warning Indicator Pipelines

by Noah Green CPA CFE | Apr 4, 2026 | DD Tech Lab

What you’ll be able to do after reading this. Recognize the difference between a single-point risk rating and a risk trajectory, and what the latter adds for portfolio-level monitoring. Read a composite-scoring formula with weighted component signals and...

Quiver for Ad-Hoc Counterparty Queries: Lightweight Investigator Tooling Without a Full Workshop Build

by Noah Green CPA CFE | Apr 3, 2026 | DD Tech Lab

What you’ll be able to do after reading this. Recognize the situations where Quiver is the right tool and where Workshop is. Read a saved Quiver query specification and understand what it returns. Apply a seven-criterion graduation checklist to decide when a...

Markov Mixture Models for Round-Tripping and Lapping Detection

by Noah Green CPA CFE | Apr 2, 2026 | DD Tech Lab

Round-tripping and lapping share a structural feature that breaks both First-Order Markov Modeling for Transaction-Stream Analysis in Audit’s first-order Markov framework and Hidden Markov Models for Earnings-Management Regime Detection in Public-Company...

Code Repositories in Foundry: When to Embed Python / PySpark in the Pipeline (and When to Stay in Pipeline Builder)

by Noah Green CPA CFE | Apr 1, 2026 | DD Tech Lab

What you’ll be able to do after reading this. Recognize the decision boundary between no-code Pipeline Builder and code-based Code Repositories. Read a @transform-decorated PySpark function and follow what it does. Identify the audit-metadata columns...

Foundry Actions Framework for Audit-Trail Discipline: Risk-Rating Changes, Regulatory Documentation, and the Examiner-Ready Audit Log

by Noah Green CPA CFE | Mar 31, 2026 | DD Tech Lab

What you’ll be able to do after reading this. Read an ActionType specification and understand what state change it captures. Recognize the bypass paths that exist in any platform deployment and the controls the institution must add separately. Read an AuditEntry...