Charles Sturt University
Charles Sturt University


The Enterprise Architecture Infrastructure portfolio is responsible for understanding the form and condition of CSU's technology infrastructure.

In this context, infrastructure can be defined as:

  • The composite hardware, software, network resources and services required for the existence, operation and management of an enterprise IT environment. It allows an organisation to deliver IT solutions and services to its employees, partners and/or customers and is usually internal to an organization and deployed within owned facilities (Techopedia), or
  • A combined set of hardware, software, networks, facilities, etc. (including all of the information technology), in order to develop, test, deliver, monitor, control or support IT services (The IT Infrastructure Library).

The focus of the CSU Infrastructure portfolio includes:

  • What technologies we currently have,
  • What technologies are needed now and in the future,
  • Technology 'health',
  • How technologies are architected, and
  • Interrelationships and dependencies between technologies, and the applications and services they support.

The Infrastructure portfolio is managed by the Enterprise Architect (Infrastructure).

Key Concepts

Infrastructure architecture is concerned with establishing environments for the optimal delivery of quality services that underpin efficient business processes. TOGAF defines the following taxonomy of service qualities:



relates to the degree to which something is available for use, including:

  • Manageability - the ability to gather information about the state of something and to control it
  • Serviceability - the ability to identify problems and take corrective action, such as to repair or upgrade a component in a running system
  • Performance - the ability of a component to perform its tasks in an appropriate time
  • Reliability - or resistance to failure
  • Recoverability - or the ability to restore a system to a working state after an interruption
  • Locateability - the ability of a system to be found when needed



  • Security - or the protection of information from unauthorised access
  • Integrity - or the assurance that data has not been corrupted
  • Credibility - or the level of trust in the integrity of the system and its data


or ease-of-operation by users, including:

  • International Operation - including multi-lingual and multi-cultural abilities



  • Interoperability - whether within or outside the organisation (for instance, interoperability of calendaring or scheduling functions may be key to the usefulness of a system)
  • Scalability - the ability of a component to grow or shrink its performance or capacity appropriately to the demands of the environment in which it operates
  • Portability - of data, people, applications, and components
  • Extensibility - or the ability to accept new functionality
  • The ability to offer access to services in new paradigms such as object-orientation

Key Focus Areas

Focus AreaIncludes


  • Networking
  • Telephony
  • Video Conferencing

Application Deployment Environments (Data Centre)

  • Servers
  • Storage
  • Environmental Control

Personal Computing

  • Desktop devices
  • Bring Your Own Device (BYOD)
  • Printing
  • Scientific Instrumentation

Audio Visual

  • Learning Spaces
  • Collaboration

Key Artefacts


Technology Portfolio Framework

A classification scheme of infrastructure systems including software, hardware and services

Feb 2015*

Technology Portfolio Framework Map

A diagrammatic view of the Technology Portfolio Framework categorisations showing 3 levels of domains

Feb 2015*

Infrastructure Standards

Lists technologies currently used at CSU specifying the desired minimum versions where applicable

Apr 2016

Network Strategy

CSU Network Strategy 2014 – 2017  

Nov 2014*

*- Document currently under review / redevelopment

Common Queries


What DIT services are available off-campus?

A list of services and applications for which DIT is the custodian indicating if the service is available outside the CSU network with equivalent functionality

What technology domains directly affect students?

The Technology Portfolio Framework with student-facing technologies highlighted