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The Six EA Domains

Six main domains plus strategic alignment as a cross-cutting element. Each domain has a national reference model and DGA guidance.

Each domain has a national reference model and guidance; the methodology applies requirements per domain.

In brief

6
domains
+1
Strategic alignment

Six main domains covering all aspects of Enterprise Architecture.

Each domain has a national reference model and DGA guidance.

Strategic alignment is a cross-cutting element linking entity objectives, digital transformation, and EA outputs.

The six domains in detail

Each domain has a national reference model and DGA guidance. Application includes requirements for each domain under the national methodology.

Business architecture

The EA domain that describes components for the business axis (administrative and organisational capabilities, core capabilities, and supporting capabilities) (Outcomes: Administrative, core, and supporting capabilities; sector reference model for business architecture)

User (beneficiary) experience architecture

The EA domain that describes components for beneficiary experience (journeys and beneficiary touchpoints) (Outcomes: Beneficiary journey, touchpoints, and improving digital service experience)

Applications architecture

The EA domain that describes components for the digital applications axis (application functions and integration points) (Outcomes: Application portfolio, integration, and digitising business, services, and data)

Data architecture

The EA domain that describes components for the data axis (data entities and storage) (Outcomes: Data assets, classification, structure, storage, and decision support)

Technology architecture

The EA domain that describes components for the technology axis (data centres and technology infrastructure) (Outcomes: Infrastructure, platforms, and technical standards supporting applications and data)

Security architecture

The EA domain that describes components for the security axis (security software and technical security services) (Outcomes: Security controls across all domains; NCA compliance and risk control)

Strategic alignment

Strategic alignment is a cross-cutting element in the general component model. It links entity objectives, digital transformation strategy, and EA outputs.

This appears in the general component model as a cross-cutting element across domains.

Related topics

National methodology

Reference models