◆Djezzy · Algeria · Telecommunications
Migration to a New Enterprise Data Warehouse
Six-Pillar Delivery Across Teradata Migration, ETL & BO Reporting
IllustrativeRaw pieces → migration & upgrade
01Context
Client background as described in the 2025 deck.
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.
02The challenge
Before
- 01Transforming 100+ operational reports within two months
- 02managing 18 million customers and 8 years of history
- 03plus ambiguous requirements and data quality issues
After, as stated
- 100+ Reports Migrated
- Ahead of Schedule
- Scalable Teradata EDW
- Improved Data Quality
As stated in the case study Transforming 100+ operational reports within two months, managing 18 million customers and 8 years of history, plus ambiguous requirements and data quality issues.
03Delivery
What BBI delivered
Six pillars of work. As you scroll, each pillar adds a layer to the structure; the layer you are reading glows.
- 01 / 06
Teradata Migration
Migrated the enterprise data warehouse to Teradata for high scalability and performance
- 02 / 06
ETL Enhancement
Enhanced ETL processes to handle 18 million customers and 8 years of history efficiently
- 03 / 06
Report Transformation
Converted legacy reports into Business Objects reports aligned with the new data model
- 04 / 06
Universe Redesign
Improved BO Universe design and data models for better usability and performance
- 05 / 06
Data Quality Fixes
Identified data quality issues and recommended practical solutions to resolve them
- 06 / 06
Early Delivery
Delivered all Business Objects reports ahead of schedule and to a high quality standard
04Outcomes
Outcomes, as stated
The four outcomes listed in the source case study. Scope describes what was implemented, not measured business impact; no figures have been added.
- Delivery scope100+100+ Reports Migrated
- DeliveryAhead of Schedule
- Stated outcomeScalable Teradata EDW
- Stated outcomeImproved Data Quality
05Technology
Technology & capabilities
Technology is listed only where this case study names it.
Named in the source
Capabilities
Source reference
BBI Company Profile 2025 — case studies, slide 10. Classified by the deck under “Telecommunications”, location “Algeria”. Review status: extracted unreviewed. The 3D scenes on this page are illustrative. Counts show how many of the deck's stories share each technology or capability.
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