The empirical foundation for Governance Engineering is PHDSS (the Public Health Decision Stewardship System), a working multi-director deliberation architecture built and tested in an Australian public health institutional context.
Across more than 50 documented runs and four primary decision categories, PHDSS produces structured, auditable reasoning that can be examined, challenged, and improved. The system doesn't decide. It raises the governance floor, surfacing reasoning through independently configured director lenses, mapping the decision surface, stress-testing across domains, and subjecting conclusions to adversarial scrutiny, epistemic audit, and reality testing. The result is a record that human decision-makers can actually interrogate.