As the largest telecom in France, Bouygues Telecom had accumulated over 300 separate data marts. They chose to build an enterprise data warehouse (EDW) that consolidated their analytic data and then distribute or give access to the BI results and analytics to the various departments and external entities. As a result, the company achieved a whopping 33% cost savings. Furthermore, the Teradata environment sustained linear scalability and remarkable performance even as the data volumes and number of users grew, while its maintenance was much simplified. In just two years, the team was able to create almost all of a long list of BI services, 88% of the value that the business units requested.