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DSarchitek Inc. licenses a reference architecture for organisations that hold records about people, and is designing the system that puts it into practice.

The Deontic Architecture®

Reference architecture · Specification at Publication Rev 1.0 · Available under licence

Personal information is well protected while it is stored and while it crosses a network. It is poorly protected once a system computes on it and produces something new. A credit score, a risk flag, an eligibility result or a model trained on a person's records is a fact about that person that was never collected from them, so the privacy duties on the original record do not follow it. A person can have the address on file corrected and still have no way to contest the score built on the old one.

The Deontic Architecture keeps the duty owed to a person attached to the records that describe them, and to everything derived from those records. It applies to any authoritative record about identifiable people, whether a public body or a private organisation holds it, and to every kind of algorithmic derivation, from a simple scoring rule to a frontier AI model. It adds five constructs to the protections that already exist and replaces none of them:

Subject Duty Envelope
Attaches the permitted purposes, legal basis, authority, retention, contestation route and security classification to each piece of data. Anything derived from it inherits them.
Derivation Ledger
Records how each derived result was produced and from which sources, so no inference exists without a line back to the duties on its inputs.
Use-Moment Gate
Checks the envelope when data is used. When it is uncertain, it refuses and says why. It never proceeds silently and never blocks silently.
Contestation Locus
Extends the right to dispute a record to everything derived from it. Correcting a source flags every downstream result for re-derivation.
Governance Mesh
Splits authority over privileged actions so no single party can quietly change a purpose, turn off contestation or remove data. Every privileged action is published to a transparency log.

Where a record concerns First Nations, Inuit or Métis individuals, communities or lands, the envelope carries collective authority as a field of its own, and individual consent does not override it. The architecture draws on the OCAP and CARE principles and on UNDRIP, and writes them as requirements a system can be tested against.

What the specification contains

Seven documents: the project charter, the scope and standards foundation, the reference architecture, a model procurement clause, an ontology, taxonomy and crosswalk to the federal instrument set, a review of comparative leading practice, and model business requirements. The procurement clause and the business requirements are written to be lifted straight into a request for proposals or a requirements baseline, with each requirement paired with the test that shows it has been met.

Three conformance levels

  • Level 1 Custodial: envelopes present and enforced at access, a ledger of derivations, and contestation of records. Achievable with current technology.
  • Level 2 Continuous: adds the gate running in a trusted execution environment, duties carried into derived results, and contestation that reaches them. Depends on confidential computing maturing.
  • Level 3 Anti-capture: adds the Governance Mesh with distributed authority. Depends on institutional design as much as on technology.

A buyer can require Level 1 Custodial today and commit to the path beyond it. Conformance is verified against the specification's tests by DSarchitek Inc. and is never self-declared. No system has yet been assessed against any level.

Where adoption costs least

A system that must carry a security classification already needs a metadata scheme for it, and the envelope rides on the same scheme, so both can be assigned in one step at design time. Added after a system is built, the same envelope means a rebuild. An organisation that wants the duty to follow its data should put the requirement into the baseline of the system it has not yet built.

Read the synopsis of The Deontic Architecture (PDF, 62 KB)

Ligavar®

Implementation · In design

Ligavar is the implementation of The Deontic Architecture. The name covers the system itself, the sovereign infrastructure it is designed to run on, and the conformance regime. It is being built for Canada first, with a layer that keeps the core portable to other orders of government and other countries.

Licences and briefings

The specification is proprietary and available under licence. To discuss a licence, a briefing on the specification for your organisation, or a conformance assessment, start a conversation on the Engage page.

THE DEONTIC ARCHITECTURE is a registered trademark of Deane Stillar, used under licence by DSarchitek Inc. LIGAVAR is a registered trademark of DSarchitek Inc. OCAP is a registered trademark of the First Nations Information Governance Centre; no claim of conformance with OCAP, or of endorsement by the Centre or any Nation, is made.