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
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