Case Studies
CGD adopts the BIAN framework and implements the SAP LeanIX Enterprise Architecture solution with Link Consulting
Categorization:
Challenge
Caixa Geral de Depósitos (CGD), Portugal’s largest bank, faced the challenge of managing a complex legacy landscape with over 700 applications. This fragmented environment increased operational costs, limited visibility across systems, and slowed down the bank’s ability to adapt and deliver new capabilities to market.
Solution
CGD initiated an enterprise architecture transformation using the BIAN framework and SAP LeanIX to rationalize its application landscape. Through a structured mapping of applications, capabilities, and workflows, the organization established a clear roadmap to eliminate redundancies, streamline processes, and build a more integrated, scalable architecture aligned with business goals.
Impact
Business Results
By leveraging a BIAN-driven approach and SAP LeanIX capabilities, CGD improved visibility over its application landscape, reduced duplication, and established a foundation for continuous modernization and API-driven evolution.
Tackling a project of this scope, in tranches that make sense for the business’s goals, might not have been possible without the underlying understanding provided by the BIAN Service Domain model and SAP LeanIX platform.”
Paulo Pereira
Architecture Director @ CGD (2025)
Related Services
Enterprise Architecture
Designing structured, domain‑aligned architectures that provide clarity, consistency, and long‑term scalability across complex organizations.
Data Governance
Establishing standards, ownership, and visibility across the application and data landscape to reduce redundancy and improve decision‑making.
Data Architecture
Creating unified, well‑organized data and application structures that enable integration, transparency, and efficient portfolio rationalization.