Enterprise Architecture at HVV

Challenge

HVV — Hamburg’s central public transport authority — wanted to take fuller ownership of its IT and gain a clearer overview of a system landscape that had grown organically over the years. Enterprise architecture management was to be established as a new, permanent function within the organization.

Starting Point

• A system landscape that had grown without central documentation
• Internally and externally hosted services with unclear dependencies
• No link between technologies, business capabilities, and user groups
• No foundation for strategic IT decisions

Approach

1. Structured capture of the entire IT system landscape following the TOGAF standard
2. Documentation of all services — internally and externally hosted — in LeanIX
3. Mapping technologies to business capabilities and user groups
4. Identification of dependencies and modernization potential
5. Establishment of a permanent enterprise architecture management process

Solution

TOGAF-compliant architecture documentation in LeanIX. HVV gained a detailed overview of its system landscape — the foundation for its future IT strategy. Enterprise architecture management was established as an ongoing function, not a one-off project.

Value / Results

• Full transparency over the IT landscape
• A clearly prioritized modernization roadmap
• A foundation for strategic budget decisions
• Enterprise architecture management implemented as a permanent function
• The basis for HVV’s future IT strategy