SOURCE-BOUND
A reliability assertion is not VERIFIED until its evidence identifies the observed source and environment.
MODLAN V81 · RELIABILITY VERIFICATION
Don't claim resilience. Exercise it.
V81 converts MODLAN's reliability doctrine into a verification fabric: synthetic probes, controlled fault injection, circuit and queue checks, failure budgets, recovery drills, topology-aware impact analysis, and evidence-backed verification states.
BLAST-RADIUS LIMITED
Failure injection must declare and enforce a synthetic boundary before pressure is introduced.
TRACE-PRESERVING
Detection, containment, recovery, replay, and final verification remain correlated as one exercise.
AUTHORITY-AWARE
Recovery and replay actions inherit the V80 object, workspace, role, and authorization context.
BUDGET-GOVERNED
Service objectives become operational only when error-budget consumption changes release or remediation behavior.
V81 · RELIABILITY VERIFICATION COMMAND
Reliability becomes credible when it is exercised.
Run a public-safe synthetic resilience sequence, inspect probes and budgets, and walk recovery doctrine without generating operational traffic or storing customer data.
LAB STATEREADYINTEGRATION → WORKFLOW
SUCCESS CONTRACT
Circuit opens before retry budget causes cascading pressure; safe degraded behavior remains explicit.
01READY
02INJECT
03DETECT
04CONTAIN
05DEGRADE
06RECOVER
07VERIFY
IDENTITY EDGE
Authorized synthetic principal reaches the expected protected boundary; unauthorized principal is denied.
- INTERVAL
- 5 MIN
- OBJECT
- Control
- WORKSPACE
- Trust & Assurance
- EVIDENCE
- status + latency + policy reference + correlation id
99.95% / 30 DAYS
Error budgets become meaningful when consumption changes operational behavior.
- BUDGET
- 21m 54s
- WARNING
- 50% consumed
- FREEZE
- 100% consumed
15 MIN RTO
Synthetic execution interrupted after durable checkpoint
- 01Detect interruption
- 02Contain duplicate execution
- 03Locate checkpoint
- 04Authorize replay
- 05Replay once
- 06Verify resulting state
- 07Close drill
Containment contract
Abort if scenario reaches a non-synthetic endpoint or exceeds declared test boundary.
Bounded Retry PolicyCircuit BreakerDegraded ModeSLO / SLA Timer
OBJECTS · Integration → Workflow → Assignment01V81 laboratory armed. No production telemetry or customer environment connected.
OBJECT-AWARE FAILURE TOPOLOGY
See technical failure as business impact.
V81 reuses the V80 enterprise object model so a failing dependency can be reasoned about as an Integration, Service, Workflow, Assignment, Incident, and ultimately Program impact—not merely a red metric.
V81FAILURETOPOLOGY
Integration
DEPENDENCYA verified Integration failure can propagate into service context if containment does not stop the path.
- CONTEXT
- V80 normalized object model
- REQUIRED
- correlation + source + environment
- STATUS
- conceptual topology / no live binding
VERIFICATION STATE MODEL
Configured is not verified.
V81 separates control existence from proof. A future production binding should progress through explicit states rather than turning configuration into an automatic green indicator.
Policy, target, owner, assertion and safe test boundary exist.
A bounded test or drill ran and produced correlated observations.
Required assertions passed against an identified source and environment.
One or more assertions failed, evidence is retained, and remediation is required.
V79 → V81
Reliability now has a proof model.
V79 defined idempotency, retries, circuits, dead letters, degraded mode, heartbeats, service objectives, and replay. V81 adds the controlled exercises and evidence semantics needed to demonstrate that those controls can actually participate in containment and recovery.
NEXT BUILD · V82
Multi-Tenant Assurance I.
V82 can reuse V80 object context and V81 verification semantics to deepen tenant-boundary negative tests, ownership verification, service isolation, and authorization regression without weakening the public/protected boundary.