Zero Trust Engineering — Distributed policy decision orchestration

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Automation and orchestration engineering reference for distributed policy decision orchestration, including policy, logical interfaces, recovery and assurance.

Purpose: Distributed policy decision orchestration. Domain: Automation and orchestration. Family: exchange. Scenario trigger: Route resource decision to distributed decision authority. Input assurance: Resource jurisdiction, policy locality and session context. Evaluation: Determine authoritative evaluator and verify decision lineage. Governing policy: Decision routing, delegation and synchronization policy. Resource-side obligation: Coordinate reliable decision without bypassing local enforcement. Protected concern: Distributed policy decision services. Logical interface: Policy authority trust domain evaluator identity scope version and result. Evidence: Delegated decision issuer policy revision and response trace. Failure: Ambiguous authority or stale delegated decision service. Required recovery: Return indeterminate response and route to surviving authority. Architectural invariant: Delegation of policy evaluation must not delegate unlimited policy ownership Adoption: replace reference roles with concrete owner-controlled services. Specify exact provider/consumer identities, schema fields and classifications, signal provenance and freshness, idempotency, authorization lifetime, timeout/retry limits, observation and tamper evidence. A denied or failed operation must not silently become a permitted one. Scope: original vendor-neutral, implementation-agnostic technical reference model. Illustrative logical components and behaviors are neither a deployed system nor evidence of regulatory compliance. Package identities remain stable within the package; cross-package semantic reconciliation requires separate explicit registry support.

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