Case Study: Oi achieves faster decision-making and a single view of customer data with Tableau Software

Brazil's largest telecom, Oi, speeds decision-making with big data

Oi, Brazil’s largest telecommunications company with more than 75 million customers and hundreds of billions of transaction records, struggled with fragmented data across multiple systems (billing, complaints, service requests, marketing). That lack of a single view made it slow to analyze sales and customer behavior, produced long executive meetings, and delayed answers to key business questions.

By implementing Tableau to publish unified data sources and interactive dashboards, Oi created a self-service, single view that executives can drill into in real time. Meeting review time dropped from over two hours to about 15 minutes, queries that once took days or weeks are answered instantly, conflicts across teams diminished, and the BI team became more proactive and productive.

Oi

Raphael Stein

Director Of Business Intelligence