Control mapping, ownership, and traceability

Build the traceability chain

Start with obligation or risk statements in language their owners understand: a regulatory clause, an internal policy line, or a finding from the SAI-110 threat model. Translate each into a control objective using the control-objective pattern: what must be allowed, prevented, detected, approved, retained, or recovered.

Map each objective to an implementation, a test, an evidence record, an owner, a reviewer, a review frequency, and a residual-risk decision. A control objective missing any of these is not yet assured — it is a stated intention.

Assign responsibility precisely

Distinguish four roles for every control: who owns the risk if the control fails, who operates the control day to day, who produces the evidence, and who verifies that evidence is sufficient before a decision relies on it. A platform team or supplier may operate a control, but the adopting organization remains accountable for deciding whether the evidence that control produces is adequate for its own release decision.

Record this distinction explicitly. "The platform team handles security" is not an ownership model; naming the control, its operator, and its accountable owner is.

Coverage and inheritance

Platform, gateway, and supply-chain controls (see Artifact identity and provenance) are frequently inherited by several AI workloads at once. Inheritance is only useful when its scope and assumptions are written down: which components, tenants, environments, and versions the inherited evidence actually covers, and which portions each workload team must still verify independently.

Do not assume full coverage because a control exists somewhere in the platform. Confirm it applies to this workload's specific data, identity, and deployment boundary.

Findings and stable identifiers

A finding should link to the failed control objective, the evidence that surfaced it, affected versions and deployments, severity, owner, remediation plan, interim compensating control, due date, and the test that will close it. Do not mark a finding closed because a document was updated — close it when the closure test passes against the current version.

Use stable identifiers across the whole chain — obligation, threat, architecture decision record (see Architecture decision records), control, test, evidence object, exception, release, and incident — so any reviewer can traverse the chain in either direction without relying on undocumented context.