Lösungen
Nationaler VersichererAusstieg aus Legacy-Warehouse
Phasenweise Migration von SQL Server und handgebautem ETL zum Lakehouse mit validierten Cutovers für Schaden- und Policendaten.
Years of SQL Server jobs and hand-built ETL meant the same metrics were calculated three different ways. We staged a lakehouse-shaped target, validated every cutover with reconciliation, and retired legacy servers on a schedule the business trusted.
Unser Ansatz
Wave planning
Claims and policy domains migrated in waves with dual-write windows and explicit exit criteria before widening scope.
Contracts & tests
Schema mapping with data contracts, regression packs, and signed-off parity checks between old and new pipelines.
Cutover discipline
Zero-downtime playbooks, rollback drills, and on-call bridges so operations knew exactly who to call during migration night.
Was wir geliefert haben
- Migrationswellen mit Dual-Write und Abgleich
- Schema-Mapping, Datenverträge und Regressionstest-Suites
- Zero-Downtime-Cutover-Playbooks und Rollback-Drills
- Dekommissionierung alter Server und Jobs
Ergebnisse
One reconciled path for claims metrics across channels
Faster incident diagnosis with lineage to source systems
Decommissioned legacy footprint with archived audit trail
Repräsentativer Stack