BBI Success Stories

DjezzyAlgeria · Telecommunications

Migration to a New Enterprise Data Warehouse

Teradata Migration, ETL & BO Reporting

Business problem
Transforming 100+ operational reports within two months
What BBI changed
Migrated the enterprise data warehouse to Teradata for high scalability and performance
Strongest supported result
100+ Reports MigratedImplementation scope
  • 100+ Reports MigratedImplementation scope
  • Ahead of ScheduleDelivery performance
  • Scalable Teradata EDWStated outcome
  • Improved Data QualityStated outcome

01Context

Djezzy is Algeria's leading mobile network operator, serving over 17 million subscribers with more than 95% coverage. Part of the VEON group, Djezzy set out to upgrade from Oracle to a Teradata-based enterprise data warehouse and modernize its reporting on Business Objects.

02Challenge

Before

  1. 01Transforming 100+ operational reports within two months
  2. 02managing 18 million customers and 8 years of history
  3. 03plus ambiguous requirements and data quality issues

After, as stated

  • 100+ Reports Migrated
  • Ahead of Schedule
  • Scalable Teradata EDW
  • Improved Data Quality

03What BBI delivered

Teradata Migration, ETL & BO Reporting

  1. Teradata Migration

    Migrated the enterprise data warehouse to Teradata for high scalability and performance

  2. ETL Enhancement

    Enhanced ETL processes to handle 18 million customers and 8 years of history efficiently

  3. Report Transformation

    Converted legacy reports into Business Objects reports aligned with the new data model

  4. Universe Redesign

    Improved BO Universe design and data models for better usability and performance

  5. Data Quality Fixes

    Identified data quality issues and recommended practical solutions to resolve them

  6. Early Delivery

    Delivered all Business Objects reports ahead of schedule and to a high quality standard

04Outcomes

Implementation scope

What was implemented, and at what scale. Not a measure of business impact.

  • 100+ Reports Migrated

Delivery performance

How the work was executed: timing, continuity and control.

  • Ahead of Schedule

Stated outcome

Listed as an outcome in the case study, without a figure.

  • Scalable Teradata EDW
  • Improved Data Quality

05Technology & capabilities

Technology named in the case study

Capabilities

Numbers show how many of the 50 stories share each item.

06Related stories

Source notes
  • BBI Company Profile 2025 — case studies, slide 10. The deck classifies this story under “Telecommunications” and lists its location as “Algeria”.
  • Outcome labels are quoted from the case study. Their grouping (impact, scope, delivery, stated) is editorial.
  • The animation at the top of the page is an illustration, not a diagram of the client's systems.

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