Enterprise System of Records
Building a Governed Single Source of Truth
Unified system of records consolidating fragmented operational data across 12 business units into a single, governed source of truth with role-based access, audit trails, and real-time analytics.
Client
Industry
Services
Timeline
Team
Stack
The Challenge
The client operated 12 disconnected line-of-business systems with duplicated customer, product, and transaction records. Reporting required weeks of manual reconciliation, and no team could agree on which number was correct.
Key pain points
- 12 disconnected systems with overlapping data
- Weeks of manual reconciliation per report
- No audit trail for data changes
- Inconsistent identifiers across systems
- Compliance gaps from missing change history
Our Solution
We designed an event-sourced system of records with master data management, fine-grained role-based access, and immutable audit logs feeding real-time analytics dashboards.
Master Data Management
Canonical entity model with deterministic and probabilistic matching to deduplicate records across systems
Immutable Audit Log
Every change captured as an event with actor, timestamp, and reason, enabling full historical replay
Role-Based Access
Attribute-based policies enforced at the data layer with row and column level controls
Real-Time Analytics
CDC streams powering live dashboards without impacting transactional performance
Technical Architecture
Event-sourced backbone with PostgreSQL as the source of truth, Kafka for change streams, and React dashboards for governance.
Technical highlights
Event-sourced architecture, master data management, fine-grained RBAC, immutable audit log
Results & Impact
Systems Consolidated
Unified into one canonical model
Audit Coverage
Every change tracked and replayable
Faster Reporting
From weeks to days end to end
Data Conflicts
Single source of truth, enforced
For the first time, every team is working from the same numbers. The audit trail alone has transformed how we handle compliance reviews.
Chief Data Officer
Mid-Market Enterprise
What we learned
Event sourcing makes audit and replay first-class, not bolted on
Master data management requires both tooling and governance discipline
Row-level security at the database is the most defensible access model
Next step
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