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GEA-NZ dimension: Infrastructure

The infrastructure dimension is one of the 4 core dimensions that represent the operational aspects of your enterprise architecture.

The infrastructure dimension of the framework ensures that the infrastructure components of an enterprise are adequately understood, while the related understanding the infrastructure landscape of an agency.

For this dimension infrastructure is defined as the generic, underlying platforms upon which specific/customised capabilities (solutions, applications and software services) may be deployed. These can consist of hardware, software and delivery components, including cloud services. The term platform used in this context covers physical as well as technology infrastructure components.

Reference taxonomy

The GEA-NZ infrastructure reference taxonomy provides a common language for describing an enterprises infrastructure components.

To download the reference taxonomy for infrastructure, see: Reference taxonomies.

Relationships to other dimensions

An overview of the infrastructure dimension's relationships to the other 7 framework dimensions:

Table 4: How infrastructure influences other dimensions

Dimension Influence
Strategy, investment and policy Infrastructure helps policy compliance through the adoption of common capabilities.
Governance and performance Infrastructure provides the infrastructure that enables governance and performance measurement and control, and offers opportunities to improve business efficiency through sharing and reuse.

Infrastructure sets the infrastructure requirements that drive:

  • development of specific NZ government standards
  • adoption of appropriate international, regional and NZ standards.
Identity, privacy and security Infrastructure provides the infrastructure controls needed to support identity, privacy and security requirements.
Business Infrastructure provides the infrastructure that supports business services, processes, capabilities, information sharing, and reuse.
Data, information and analytics Infrastructure provides the technology/digital infrastructure to support secure, timely processing, analysis, storage and exchange of data.
Application and software services Infrastructure provides the internal or external infrastructure for hosting applications and software services.


All-of-government resources

At an all-of-government level, the infrastructure dimension guides the sharing and reuse of infrastructure to reduce costs, increase interoperability across agencies, support efficient acquisition and deployment, and enable greater access to information across organisations.

A primary theme is the use of cloud services to provide the underlying infrastructure for a digital public service.

Cloud services — Government organisations are expected to use public cloud services in preference to traditional IT systems. Cloud services must be assessed

Pae Hokohoko | Marketplace — Marketplace lets New Zealand and international businesses offer their products and services directly to New Zealand government agencies.

Telecommunications as a Service (TaaS) — These consist of telecommunications and managed security services, including WAN, LAN, Wi-Fi, voice (mobile, PABX and public network access), unified communications, and contact centre services.

Full catalogue of all-of-government products and services.

Your agency's resources

At an agency level, the infrastructure dimension describes the describes the infrastructure assets of the agency, and helps digital asset management. It also helps agencies plan their migrations away from internally owned and managed infrastructure to cloud services and other all-of-government shared service offerings.

  • Asset lifecycle management plan
  • Infrastructure asset catalogue linked to applications, software and services
  • Configuration Management Database (CMDB)
  • Cloud capable configuration management and automation tools
  • As-built documentation
  • Operational procedure documentation.

Utility links and page information

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