Zero Trust Engineering — Disconnected and degraded-mode operation
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/02 About
Cross-domain integration engineering reference for disconnected and degraded-mode operation, including policy, logical interfaces, recovery and assurance.
Purpose: Disconnected and degraded-mode operation. Domain: Cross-domain integration. Family: resilience. Scenario trigger: Authorize essential protected operations without central connectivity. Input assurance: Signed offline policy, local identity evidence and bounded risk state. Evaluation: Validate minimum viable trusted context and local policy age. Governing policy: Disconnected operational scope, lease and reconciliation policy. Resource-side obligation: Permit preauthorized essential functions or withhold risky actions. Protected concern: Offline enterprise edge or isolated site services. Logical interface: Local policy age access lease offline quota identity evidence and sync. Evidence: Offline authorization origin grant quota and deferred evidence. Failure: Extended partition, expired device attestation or stale revocation. Required recovery: Restrict service and reconcile all deferred actions on reconnect. Architectural invariant: Offline availability does not justify indefinite unreviewable authority 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.
Curated · other · unspecified · Published by Lattix · 29 elements · 33 relationships · validated on publish
/03 Contents
- Capability
- Cross-domain integration, Disconnected and degraded-mode operation
- Role
- Cross-domain integration owner
- Business Actor
- Service continuity coordinator
- Activity
- Authorize essential protected operations without central connectivity, Verify: Signed offline policy, local identity evidence and bounded risk state, Assess: Validate minimum viable trusted context and local policy age, Execute: Permit preauthorized essential functions or withhold risky actions, Exception: Extended partition, expired device attestation or stale revocation, Recover: Restrict service and reconcile all deferred actions on reconnect
- Application Component
- Signed offline policy, local identity evidence and bounded risk state, Validate minimum viable trusted context and local policy age, Permit preauthorized essential functions or withhold risky actions
- Application
- Offline enterprise edge or isolated site services
- Policy
- Disconnected operational scope, lease and reconciliation policy
- API
- Disconnected and degraded-mode operation logical interface
- Message/Event Schema
- Local policy age access lease offline quota identity evidence and sync
- Data Store
- Offline authorization origin grant quota and deferred evidence
- Control
- Disconnected and degraded-mode operation enforcement assurance
- Risk
- Extended partition, expired device attestation or stale revocation risk
- Requirement
- Offline availability does not justify indefinite unreviewable authority
- Measure
- Disconnected and degraded-mode operation assurance completeness
- Trust Boundary
- Disconnected and degraded-mode operation authority boundary
- State
- Protected operation sustained, Service unavailable or degraded, Verified normal operation, Bounded degraded operation, Fail-secure isolation, Verified restoration