Zero Trust Engineering — Control-plane availability and failure-mode model
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/02 About
Cross-domain integration engineering reference for control-plane availability and failure-mode model, including policy, logical interfaces, recovery and assurance.
Purpose: Control-plane availability and failure-mode model. Domain: Cross-domain integration. Family: resilience. Scenario trigger: Detect loss or partial compromise of decision and policy services. Input assurance: Policy authority health, enforcer lease and replicated decision state. Evaluation: Classify outage, stale policy and diverging evaluator authority. Governing policy: Control-plane degraded operation, emergency access and fail-secure policy. Resource-side obligation: Preserve resource protections and restrict uncertain decisions. Protected concern: Enterprise security policy and authorization control services. Logical interface: Policy revision service health cache lease granted scope and recovery. Evidence: Service failure mode affected grants safe operation and recovery audit. Failure: Policy engine unavailable while enforcers retain unsafe grants. Required recovery: Expire unsupported authority and recover policy consistency. Architectural invariant: A control-plane outage must not become an implicit global permit 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, Control-plane availability and failure-mode model
- Role
- Cross-domain integration owner
- Business Actor
- Service continuity coordinator
- Activity
- Detect loss or partial compromise of decision and policy services, Verify: Policy authority health, enforcer lease and replicated decision state, Assess: Classify outage, stale policy and diverging evaluator authority, Execute: Preserve resource protections and restrict uncertain decisions, Exception: Policy engine unavailable while enforcers retain unsafe grants, Recover: Expire unsupported authority and recover policy consistency
- Application Component
- Policy authority health, enforcer lease and replicated decision state, Classify outage, stale policy and diverging evaluator authority, Preserve resource protections and restrict uncertain decisions
- Application
- Enterprise security policy and authorization control services
- Policy
- Control-plane degraded operation, emergency access and fail-secure policy
- API
- Control-plane availability and failure-mode model logical interface
- Message/Event Schema
- Policy revision service health cache lease granted scope and recovery
- Data Store
- Service failure mode affected grants safe operation and recovery audit
- Control
- Control-plane availability and failure-mode model enforcement assurance
- Risk
- Policy engine unavailable while enforcers retain unsafe grants risk
- Requirement
- A control-plane outage must not become an implicit global permit
- Measure
- Control-plane availability and failure-mode model assurance completeness
- Trust Boundary
- Control-plane availability and failure-mode model authority boundary
- State
- Protected operation sustained, Service unavailable or degraded, Verified normal operation, Bounded degraded operation, Fail-secure isolation, Verified restoration