Australian Government Architecture Reference Models Version 3.0

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2 Reference Model Overview
The AGA contains a set of inter-related ‘reference models’ designed to facilitate cross-agency analysis and the
identification of duplicate investments, gaps and opportunities for collaboration within and across agencies.
Collectively, the reference models comprise a framework for describing important elements of the AGA in a
common and consistent manner. Refer to Figure 2-1 for details.
Australian Government Architecture Reference Models Version 3.0
Figure 2-1: Australian Government Architecture (AGA)
Through the use of this common enterprise architecture framework and vocabulary, ICT portfolios can be better
managed and leveraged across the Australian Government. This section introduces the purposes and
structures of the five AGA reference models:
Performance Reference Model (PRM)
Business Reference Model (BRM)
Service Reference Model (SRM)
Data Reference Model (DRM)
Technical Reference Model (TRM).
2.1 Performance Reference Model
The PRM is an outcome-focused measurement framework that can assist government agencies in the design
and implementation of effective business measurement systems and performance architectures. It is made up
of a hierarchical meta-model that helps identify measurement needs; a classification framework that describes
the types of measurement that can support the identified needs; and a measurement indicator framework that
helps define effective measurement indicators. When combined, these elements form a PRM that:
� promotes strong alignment between business initiatives and agency and government strategies and
outcomes
� facilitates efficient and effective business operation
� supports transparency and accountability in government.
The PRM is flexible and can be applied within any government agency at any level of government to support
planning, management and evaluation activities. It consolidates, aligns and extends existing measurement