The problem enterprise architecture solves
Most governments digitise one institution at a time. Each ministry buys its own systems, builds its own registries and asks citizens for the same information again and again. The result is duplication, high cost and services that cannot talk to each other.
A Government Enterprise Architecture Framework (GEAF) sets the shared principles, standards and reference models that every institution follows, so new systems fit together — and so ICT investment can be reviewed against a common blueprint.
What a framework contains
- Architecture principles — for example “reuse before buy, buy before build”, “once-only data collection” and “secure by design”.
- Reference models for the business, data, application and technology architectures.
- Standards: interoperability and API standards, data standards, security and privacy controls, and UI/UX and accessibility guidelines.
- Governance: an architecture board, compliance reviews for new projects and a process for keeping the framework current.
- A roadmap: prioritised initiatives with cost, skills and sequencing.
Interoperability has four layers, not one
A common mistake is treating interoperability as a technical exercise. The European Interoperability Framework — widely used as a reference well beyond Europe — distinguishes four layers that must all work:
- Legal: laws and data-sharing agreements that allow and govern the exchange.
- Organisational: aligned processes, responsibilities and service levels between institutions.
- Semantic: shared data models and registries so data means the same thing everywhere.
- Technical: secure APIs, messaging, identity and trust services.
How TOGAF ADM structures the work
The TOGAF® Architecture Development Method (ADM) provides a proven sequence: establish the vision and scope, describe the current (baseline) business, data, application and technology architectures, design the target state, analyse the gaps, and plan the migration — with governance throughout. In practice we adapt it to the client’s terms of reference: inception, current-state assessment, target architecture, stakeholder validation, roadmap and specifications, and capacity building.
Why frameworks fail — and what prevents it
- Shelf-ware: the framework is approved but never used. Prevent it with governance that gates new ICT investment against the framework.
- Duplicated registries: prevent it with authoritative base registries and a common data-exchange layer.
- Vendor lock-in: prevent it with open standards and technology-neutral specifications.
- Designs that ignore local realities: plan for low bandwidth, mobile-first access and offline capability.
- Skills that leave with the consultants: build capacity throughout the assignment, not just at the end.
Benchmarks worth tracking
Progress is easier to demonstrate when it is measured the way international partners measure it — for example the dimensions of the UN E-Government Development Index (EGDI) and the World Bank GovTech Maturity Index (GTMI). Aligning with continental policy such as the AU Digital Transformation Strategy for Africa (2020–2030) and national data-protection law keeps the framework defensible.
Working with Technology Abreast
We develop enterprise architecture and interoperability frameworks, digitisation roadmaps and technical specifications for public institutions, and build the capacity to sustain them. See our Digital Government practice for our method, team and how we meet typical terms of reference.