System Note 06 · Enterprise Systems

Data Consolidation Layer

Bell Canada

SQLData IntegrationETLBusiness Logic
Live
What it is

A transformation step that reconciles the same fact — a customer name, a product, a ticket number — when four systems each spell it differently, and picks the single best value.

4 source systems · 80,000 discrepancies reconciled

Why I built it

Downstream reports were splitting one real customer or product into several, because each source had its own version of the value.

Outcome
4source systems
80,000discrepancies fixed

Evidence before confidence.

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