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The official Information Technology VCAA Glosary

Authoring software

A category of software that enables users to create multimedia and web solutions without the need to write programming code. The software generates the code required to run the application created. Often used for developing web pages (for example, Adobe Dreamweaver), multimedia presentations (for example, Sunburst HyperStudio, Ulead DVD MovieFactory, Microsoft PhotoStory, and Apple iMovie and Apple Final Cut Express for video productions) and games (for example, Game Creator 3D Gamemaker, Conitec 3D GameStudio, Conitec Atari Lite-C).

Cloud computing

A service provided by large Internet-based, specialised data centres that offers offsite storage, processing and computer resources to individuals and organisations. The services are shared, on-demand and usually simple to use.

For example, Google's gmail uses cloud computing processing powers and storage facilities; Amazon's Elastic Compute Cloud offers computing resources without a development platform layer.

Data visualisation

A process of using software tools to select and access data from large repositories and present the data as effective graphics. Graphical presentations usually take the form of charts, graphs, spatial relationships, histograms, maps and network diagrams. Some data visualisation tools allow the presentations to be dynamic.

Examples of data visualisation tools include programming languages, such as Python, spreadsheet software, database software, Google Docs (gadgets/motion charts), InfiView, Nexus (social graph browser). [Applies to U1O3]

Design brief

A statement that contains an outline of a situation, context, problem, need or an opportunity, any conditions that apply to a problem and the future needs. It provides a basis from which students can apply some or all of the stages of the problem-solving methodology when solving information problems.

Efficiency

A measure of how little time, cost and/or effort is applied in order to achieve intended results. Measures of an efficient solution include the speed of processing, the functionality of the solution, the ease of use of the solution and the cost of information file manipulation.

Measures of an efficient network include its productivity, processing time, operational costs and level of automation.

Effectiveness

A measure of how well something works, such as a solution, a file and information management strategy and a network, that is, the extent to which it achieves its intended results. Measures of an effective solution include completeness, readability, attractiveness, clarity, accuracy, accessibility, timeliness, communication of message, relevance and usability.

Measures of an effective file and information management strategy include integrity of data, security, ease of retrieval and currency of files. Measures of effective networks include reliability and maintainability.

Information architecture

Ways in which information should be treated and organised within onscreen solutions. This includes the structuring or grouping of sets of information and determining navigation pathways. Effective and efficient information architecture enables users to intuitively and confidently locate information they require.

Information system

The combination of people, procedures, equipment and data that process data and information.

Legal obligations

Legal obligations that individuals and organisations have with respect to the ownership and privacy of information, and freedom of expression. For the purposes of this study the key provisions of the following acts are relevant:
•Privacy Act 1988
•Information Privacy Act 2000 (Victorian)
•Health Records Act 2001 (Victorian)
•Copyright Act 1968
•Charter of Human Rights and Responsibilities Act 2006 (VIC) (sections 13,14 and 15)
•Spam Act 2003 (Part 1.3, Simplified outline).

The last 2 acts are new to this study design.

Open Systems Interconnection (OSI)

A seven-layer network protocol:
•physical (Layer 1)
•data link (Layer 2)
•network (Layer 3)
•transport (Layer 4)
•session (Layer 5)
•presentation (Layer 6)
•application (Layer 7).

The emphasis in the study design is on Layer 1.

Physical security measures/devices

Equipment used to assist in the protection of information systems and the files produced, received and stored by individuals and organisations, including
•zoned security strategies
•barrier techniques
•biometrics.

Also see Software security measures/ devices.

Problem-solving methodology

A systematic way of solving information problems. This methodology is used throughout this study. See here for details.

Security threats

Actions, devices and events that threaten the integrity and security of data and information stored within, and communicated between, information systems. The threats can be accidental, such as losing a portable storage device containing files; deliberate, such as denial of service and worms; and events-based, such as a power surge.

Social online protocols

Accepted ways of behaving on websites that support communication. Protocols usually relate to identity, the nature of information exchanged, language used in communications and the rights of members.

Examples of breaches of social online protocols include
•fraudulent identity
•cyberbullying
•harassment
•posting of inappropriate information and
• use of inappropriate language.

Software requirements specifications (SRS)

A comprehensive description of the intended purpose and environment for purpose-designed software solutions. It documents the key tasks associated with the analysing stage of the problem-solving methodology. The software requirements specifications (SRS) fully describes the functional requirements (what it is required to do) and non-functional requirements of the solution (solution attributes) such as user-friendliness, response rates, robustness, portability, reliability and maintainability, the conditions affecting the solution (constraints) and the parameters of the solution (scope).

Software requirements specifications fulfils the purposes of breaking down the problem into component parts, providing input to the designing stage and serving as a reference point for further stages of the problem-solving methodology.

Software security measures/devices

Software and procedures used to assist in the protection of information systems and files produced, received and stored by individuals and organisations, including
•user names and passwords
•access logs and audit trails
•access restrictions
•encryption and
•security protocols such as Transport Layer Security (TLS) and Secure Sockets Layer (SSL)
•firewalls and
•system protection.

Solution

A method of producing required information through the application of technology (hardware and software) and techniques.

Testing techniques

Ways of ensuring a solution operates as intended. Testing is normally performed immediately after the development of a solution.

Visualising thinking tools

Software tools that allow students to clarify thoughts and to identify patterns and form relationships between sets of data and information. They are tools that support abstract reasoning.

Examples include
•graphic and word processing software
•concept/ mind mapping software
•simulation software
•graphic organisers
•wikis
•database software and
•spreadsheet software.

Wired and wireless communications technology

Types of transmission media, including
•wired (fibre optic, twistedpair) and
•wireless (microwave, satellite, radio and infrared).

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