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Australian Government Architecture Reference Models Version 3.0

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Term Definition<br />

Technical <strong>Reference</strong><br />

Model (TRM) [top]<br />

A component-driven, technical framework used to categorise the standards,<br />

specifications and technologies that support and enable the delivery of service<br />

components and capabilities. The TRM provides a foundation to categorise the<br />

standards, specifications and technologies to support the construction, delivery<br />

and exchange of business and application components (Service Components)<br />

that may be used and leveraged in a Component-Based or Service-Oriented<br />

<strong>Architecture</strong>. The TRM unifies existing Agency TRMs and E-Gov guidance by<br />

providing a foundation to advance the re-use of technology and component<br />

services from a government-wide perspective. Service areas include: Service<br />

Access and Delivery, Service Platform and Infrastructure, Component<br />

Framework, and Service Interface and Integration (http://www.finance.gov.au/egovernment/index.html).<br />

Term [top] One or more words designating a concept. (ANSI/NISO Z39.19-200x)<br />

Term Record A collection of information associated with a term in a controlled vocabulary,<br />

including the history of the term, its relationships to other terms and, optionally,<br />

authorities for the term. (ANSI/NISO Z39.19-200x)<br />

Thesaurus [top] A networked collection of controlled vocabulary terms. A thesaurus uses<br />

equivalence (synonym), hierarchical (broader/narrower) and associative<br />

relationships. The expressiveness of the associative relationships in a<br />

thesaurus varies and can be as simple as ‘related to term’, as in ‘term A is<br />

related to term B’. (ANSI/NISO Z39.19-200x)<br />

Topic [top] A category within a Taxonomy. A Topic is the central concept for applying<br />

context to data. For example, an agency may have a Taxonomy that represents<br />

its organisational structure. In such a Taxonomy, each role in the organisational<br />

structure (e.g. CIO) represents a Topic. Topic is often synonymous with Node.<br />

(DRM usage)<br />

Top Term [top] The broadest term in a controlled vocabulary hierarchy. (ANSI/NISO Z39.19-<br />

200x)<br />

Transaction [top] An exchange of information between two or more services (or an entity and a<br />

service) in the performance of an operation or function. (DRM usage)<br />

Transactional Database<br />

[top]<br />

A database that support transactions. A database transaction is a unit of<br />

interaction with a database management or similar system that is treated in a<br />

coherent and reliable way independent of other transactions that must be either<br />

entirely completed or aborted.<br />

Tree Structure [top] A controlled vocabulary display format in which the complete hierarchy of terms<br />

is shown. Each term is assigned a tree number or line number which leads<br />

from the alphabetical display to the hierarchical one; the latter is also known as<br />

systematic display or classified display. (ANSI/NISO Z39.19-200x)<br />

TRM [top] See Technical <strong>Reference</strong> Model.<br />

Unified Modeling<br />

Language (UML) [top]<br />

A non-proprietary, object modelling and specification language. As a graphical<br />

notation, UML can be used for modelling hardware (engineering systems) and<br />

is commonly used for business process modelling, systems engineering<br />

modelling, software engineering and representing organisational structure.<br />

UML was designed to be used to specify, visualise, construct and document<br />

<strong>Australian</strong> <strong>Government</strong> <strong>Architecture</strong> <strong>Reference</strong> <strong>Models</strong> <strong>Version</strong> <strong>3.0</strong><br />

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