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Government Enterprise Architecture for New Zealand (GEA-NZ) Framework

The All-of-Government (AoG) Government Enterprise Architecture for New Zealand is known as GEA-NZ.  GEA-NZ is a framework to support ICT enabled transformation across government. The framework is designed to be applied at an agency, sector, and all-of-government level. 

GEA-NZ Framework Overview

GEA-NZ Framework Overview

Click here for an A3 PDF of the GEA-NZ Framework Overview Diagram.

Click here for an A4 PDF of the GEA-NZ Framework Overview Diagram.  

Primary Outcomes

  • Success of Government Goals and Objectives Provide a consistent view and accurate information within and across agencies to support planning and decision making.
  • Functional Integration Facilitate and encourage interoperability within and across agencies and between programs and enhanced services by the use of Enterprise Architecture standards.
  • Authoritative Reference Provide an integrated, consistent view of strategic goals, business services and enabling technologies across the entire organisation, including programs, services, and systems.
  • Resource Optimisation Provide a harmonised and consistent view of all types of resources in each functional area, program, and system area.


At an AoG level, the GEA-NZ framework is used to optimise delivery of All-of-Government (AoG) goals delivering the Government ICT Strategy:

  • provides a unifying common language
  • categorisation to describe shared product and services - common capabilities
  • categorise and make discoverable relevant standards and guidelines - standards reference
  • define sets of reference models and patterns - reference architecture
  • define and identify government business capabilities -  government business capability model

Agency and Sector

At the more detailed agency and sector levels, GEA-NZ offers:

  • a "starter framework" to help agencies that are redeveloping their Enterprise Architectures to align agency modelling to sector and all-of-government views
  • an outline of the major components and relationships that agencies and sectors should model to maintain an efficient and effective ICT asset base and to inform business transformation initiatives
  • a set of reference models and patterns, focusing on common elements such as authentication and data interchange
  • an ICT standards base


GEA-NZ Dimensions Diagram

[click on the diagram to link to the GEA-NZ Dimensions page]



The GEA-NZ dimensions are overviewed in the table below:



Strategy, Investment and Policy

The Strategy, Investment, and Policy dimension provides linkage between the architecture and strategic goals, policies and investments.

Governance and Performance

The Governance and Performance dimension describes governance models and performance frameworks and related metrics that apply across other dimensions of GEA-NZ. 


The Business dimension provides the structure for understanding the business of government.

Data and Information

The Data and Information dimension's purpose is to discover, describe, manage, share and reuse information within and across agencies.

Application and ICT Services

This dimension describes the business applications, including ‘Software as a Service’, that support the business processes of the enterprise. It includes core business applications, COTS corporate applications, software components (websites, databases, email, and other supporting software) and end user computing applications.


The Infrastructure dimension describes the technology infrastructures that support the application and business processes of the organisation. It may include insourced, outsourced or cloud capabilities. It includes domains for facilities, platforms, networks, and end user devices.

Security and Privacy

The Security and Privacy dimension gives an enterprise architecture context to the relevant security and privacy requirements for government agencies, and other guideline artefacts, that form the eco-system (or life-cycle) for ICT security and privacy.


The Standards dimension includes the information and technology standards base for the NZ government.

Page last updated: 08/12/2017