The Regulatory Stack Is Your Architecture Diagram.

Most teams meet the regulatory stack at the end — a gate to clear before launch. That is exactly backwards. In regulated finance, SR 11-7, the EU AI Act, DORA, and the NIST AI RMF are the de facto architecture for any AI system. Design to them from day one and the path to production gets shorter, not longer.

Each framework is a design constraint, not a checkbox

Model risk discipline tells you every model needs an owner, a purpose, and a documented control. The EU AI Act tells you risk tier drives obligations. DORA tells you operational resilience is not optional. The NIST AI RMF gives you the shared vocabulary to map it all. Read together, they describe a system — so build that system.

Governance designed in is an architecture. Governance bolted on is a tax.

The institutions that move fastest treat the stack as the blueprint. They map controls before they write code, and they never have to rebuild to satisfy a requirement they could have designed for.