Schema Dam
Guided reference demo · synthetic ecommerce
Keep the platform moving

Keep data products running through breaking schema changes.

Schema Dam reads DataHub to find the real blast radius, contains only affected products, and writes verified recovery back for the next operator or agent.

READY · 6 STEPS NORMAL

All eight products are current.

Start the incident to see how Schema Dam handles an unmanaged breaking change without stopping the whole platform.

Affected0
Still running8
Backlog0
Checkpoint3
DataHub contextREAD
{ }Schema fieldOrders.category_code changed
Column lineageWhich products actually use it?
Identity & ownershipExact assets and responsible teams
Containment frontier Waiting for the breaking event…
Deterministic controllerACT
Runtime decision No intervention · 8 current
Gate stateOPEN
Serving modePRIMARY
CanaryNOT RUN
ApprovalNOT NEEDED
Canary-tested artifact none
Ordered replay0 / 10
Product boundariesLIVE
Category AnalyticsOrders input · last-good availableCURRENT
Inventory ForecastOrders + Products companion inputCURRENT
RecommendationOrders + Products · fallback readyCURRENT
5 unaffected productsCURRENT

Order Count · Settlement · Search Index · Fraud Detection · Revenue Dashboard

Native DataHub incidentNOT CREATED
Impact & owners3 affected · 5 uninterrupted
Approval evidenceExact SHA · canary proof
Verified resolutionReplay · health · resume
What this is: a deterministic browser replay of the checked-in reference scenario. Runnable proof: SQLite + HTTP boundary by default; live DataHub E2E is documented in the repository.