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• VCDTCD040

  Define and decompose real-world problems taking into account functional requirements and sustainability (economic, environmental, social), technical and usability constraints

  Elaborations

  • determining the factors that influence proposed solution ideas, for example user age affects the language used for instructions, dexterity affects the size of buttons and links, hearing or vision loss influence captioned or audio-described multimedia as alternative ways that common information is presented on a website
  • investigating types of environmental constraints on solutions, for example reducing energy consumption and on-screen output of solutions
  • identifying that problems can be decomposed into sub elements, for example creating a decision tree to represent the breakdown and relationships of sub elements to the main problem or identifying the elements of game design such as characters, movements, collisions and scoring
  • starting from a simplified system, gradually increase complexity until a model of a real-world system is developed, and record the difficulties associated with each stage of development

  VCDTCD040 | Technologies | Digital Technologies | Levels 7 and 8 | Creating Digital Solutions

• VCDTDI020

  Recognise different types of data and explore how the same data can be represented in different ways

  Elaborations

  • recognising that numbers, text, images, sounds, animations and videos are all forms of data when stored or viewed using a digital system
  • using a table to reorganise information that includes sentences, and/or words, and/or numbers and/or images
  • recognising representations of different types of data such as waves for sound
  • exploring codes and symbols that are representations of data, for example morse code and semaphore and how similar symbols in Aboriginal and Torres Strait Islander art can represent different concepts depending on the context, for example three circles, drawn as lines, can represent ants, fruit, flowers or eggs depending on the art region

  VCDTDI020 | Technologies | Digital Technologies | Levels 3 and 4 | Data and Information

• VCDTCD044

  Evaluate how well student-developed solutions and existing information systems meet needs, are innovative and take account of future risks and sustainability

  Elaborations

  • comparing student-developed solutions with existing solutions that solve similar problems, for example identifying differences in the user interface of two adventure games and explaining how these differences affect the usability or appeal of the game
  • judging the quality of a student-developed solution based on specific criteria such as meeting an economic need or contributing to social sustainability
  • investigating what features of touch input rather than keyboard or mouse input contribute to their success in meeting a wide range of needs, for example mimicking a common movement such as expanding or contracting a hand to change the size of an object on screen, suits users with a range of dexterity
  • evaluating the success of information systems in meeting an economic, environmental or social objective, for example interviewing a local business owner to find out how effectively their information system supports a business objective such as increasing market share
  • considering the effects of e-waste on societies and environments, for example the impacts of toxic chemicals when hardware is disposed of, and the practice of dumping unwanted digital systems overseas, particularly in the Asia region
  • comparing cloud-based information systems to client-based information systems on the basis of security of transmitted and stored data and energy costs

  VCDTCD044 | Technologies | Digital Technologies | Levels 7 and 8 | Creating Digital Solutions

• VCDTCD054

  Evaluate critically how well student-developed solutions and existing information systems and policies take account of future risks and sustainability and provide opportunities for innovation

  Elaborations

  • investigating actions, devices and events that are potential risks to information systems, for example losing portable storage devices containing important files, deliberately infecting systems through malware, and power surges
  • investigating techniques used by people and organisations to shape how information systems are used, for example refusing to use innovations, using social media to advocate behaviours, purchasing devices, withdrawing previous processes that can now only be performed by an information system
  • investigating the impact and opportunities created through the practice of planned obsolescence, for example discussing the benefits and risks to users, the creators and the environment of information systems having a defined life span, taking into account costs, research and resource extraction
  • examining the ICT policy for schooling and evaluating the impact on education
  • reviewing the ‘terms of use’ policies on social media networks and predicting ways in which these can support advocacy of change and protection of individuals and societies
  • reviewing state, national and regional policies and analysing the potential impact of each. Examples of policies include: Australian Government Protective Security Policy Framework, the Australian Government ICT Sustainability Plan 2010–2015; the Green Growth Policy in Korea and the Korean National Strategy for Sustainable Development

  VCDTCD054 | Technologies | Digital Technologies | Levels 9 and 10 | Creating Digital Solutions

• VCDTDI038

  Analyse and visualise data using a range of software to create information, and use structured data to model objects or events

  Elaborations

  • using features and functions of software to summarise data to create information, for example calculating a simple budget of income and payments and creating a summary table for analysis
  • visualising data to create information, for example displaying geocoded data on a map
  • applying a set of conditions to a spreadsheet to organise and filter data, for example using conditional formatting to highlight the state of particular cells, and filtering and sorting categorical data using column filters
  • querying an existing database to extract data for analysis, for example devising multiple selection criteria or using simple structured query language (SQL) SELECT statements to select records and retrieve specified fields
  • describing the attributes of complex objects, for example defining the records, fields, formats and relationships of a simple dataset
  • modelling the attributes of real-world objects for a computer game

  VCDTDI038 | Technologies | Digital Technologies | Levels 7 and 8 | Data and Information

• VCDTDI021

  Collect, access and present different types of data using simple software to create information and solve problems

  Elaborations

  • selecting appropriate formats or layout styles to present data as information depending on the type of data and the audience, for example graphs suit data that shows trends or comparisons; lists suit text data that needs to be presented in alphabetical order; animations suit images that show actions and relationships
  • using different techniques to present data as information, for example creating a column chart in a spreadsheet by colouring cells to represent different items
  • improving the appearance and usability of data, for example using colour, headings and labelling of images to organise and accurately identify data
  • using software to sort and calculate data when solving problems, for example sorting numerical data in ascending or descending order and automating simple arithmetic calculations using nearby cells and summing cell ranges in spreadsheet or database software
  • exploring different online sources to access data, for example using online query interfaces to select and retrieve data from an online database such as a library catalogue or weather records
  • recognising that all types of data are stored in digital systems and may be represented in different ways such as files and folders with names and icons

  VCDTDI021 | Technologies | Digital Technologies | Levels 3 and 4 | Data and Information

• VCDTCD050

  Define and decompose real-world problems precisely, taking into account functional and non-functional requirements and including interviewing stakeholders to identify needs

  Elaborations

  • developing a preliminary specification for an opportunity or a need that typically contains a problem statement, a set of solution needs expressed as functional and non-functional requirements, any assumptions or constraints to be considered and the scope or boundaries of the solution
  • investigating different types of functional requirements for solutions, for example increasing the speed of processing, calculating new results, improving the quality of reports
  • investigating different types of non-functional requirements for solutions, for example considering how the requirements of reliability, user-friendliness, portability and robustness could affect the way people use solutions
  • identifying the range of stakeholders who are associated with solutions but are not direct users and using techniques such as interviewing and reinterviewing to clarify needs
  • using software such as graphic organisers to determine a fundamental cause of a problem or to represent related elements of a problem that need to be jointly addressed in the digital solution
  • testing a range of text and graphical user interface designs with clients who have different needs on the basis of time taken to complete the task and the number of errors made

  VCDTCD050 | Technologies | Digital Technologies | Levels 9 and 10 | Creating Digital Solutions

• VCDTDS045

  Investigate the role of hardware and software in managing, controlling and securing the movement of and access to data in networked digital systems

  Elaborations

  • explaining how an operating system manages the relationship between hardware, applications and system software
  • comparing the similarities and differences of two common operating systems based on characteristics such as protection, control, processing and storage
  • identifying how changes to the configuration of an operating system change the operation of hardware and software components in a networked digital system
  • explaining the role of hardware and software components in allowing people to interact with digital systems, for example using a mouse or touch pad or screen, speech, accelerometer
  • investigating the operation and use of robotic process control systems
  • explaining encryption of data as a means of protecting data, for example secret keys and ‘exclusive or’ (XOR) and hashing algorithms to digitally sign data

  VCDTDS045 | Technologies | Digital Technologies | Levels 9 and 10 | Digital Systems

• VCDTDI039

  Manage, create and communicate interactive ideas, information and projects collaboratively online, taking safety and social contexts into account

  Elaborations

  • discussing how different social contexts affect participation in global virtual spaces, for example considering the use of language, acronyms and humour, and providing opportunities for each team member to express their opinions on their own terms
  • organising the instructions and files in readiness for the development of a solution, for example applying a file name convention such as author initials, version and date to all data files that are going to be used to create solutions
  • creating a web-based project that involves modifying an existing website template or writing HTML and cascading style sheets (CSS), for example using web-authoring software and CSS to create a website that allows customers to interact with an enterprising solution, such as purchasing an item
  • devising and applying protocols to manage the collaborative creation of solutions, for example planning to use cloud computing to store common files and establishing virtual meetings that acknowledge time zone differences
  • organising the timeline, resources, file naming conventions, back-up measures and sequence of tasks required to collaboratively create solutions that meet specified needs

  VCDTDI039 | Technologies | Digital Technologies | Levels 7 and 8 | Data and Information

• VCDTCD003

  Experience steps involved in completing a routine task

  Elaborations

  • watching the presentation of an event in a series of slides or screens accompanied by text and pictures
  • carrying out a simple step-by-step procedure such as cleaning teeth
  • showing how everyday tasks can be broken down through displays and visual schedules

  VCDTCD003 | Technologies | Digital Technologies | Level A | Creating Digital Solutions

• VCDTCD018

  Explore how people safely use common information systems to meet information, communication and recreation needs

  Elaborations

  • sharing and describing ways that common information systems can be used to meet communication needs, for example computers can be used as phones and social networking tools allowing communication between families living in different regions
  • recognising and discussing the need for cyber-safety when using online information systems, for example recognising that shared personal information can be used for undesirable purposes and that using a password is a means of protecting identity
  • recognising safe ergonomic practices when children are playing with information systems, for example recognising the need to take regular breaks to avoid eye strain and repetitive strain injuries
  • discussing how a range of information systems support personal needs and impact on others, for example text to speech software can be used to meet the communications needs of people with vision loss
  • sharing ideas about the ways information systems are being used by families and friends in everyday life, for example comparing current digital play equipment with play equipment of 20 years ago

  VCDTCD018 | Technologies | Digital Technologies | Foundation to Level 2 | Creating Digital Solutions

• VCDTDI014

  Recognise and explore patterns in data and represent data as pictures, symbols and diagrams

  Elaborations

  • sorting objects and events based on easily identified characteristics and using digital systems to represent patterns in data, for example sorting birthdates and presenting the patterns using seasonal symbols
  • making generalisations about data sets, for example comparing different ways of travelling to and from school using classroom data, discussing results and finding patterns in modes of travel
  • experimenting with different ways of representing patterns, for example using materials, sounds, movements or drawing
  • exploring patterns of objects or symbols to represent data, for example the symbol 12 may represent different data to 21
  • learning about how data are represented by changing pixel density (resolution) in a photograph and noting the change in file size to successfully email to a friend

  VCDTDI014 | Technologies | Digital Technologies | Foundation to Level 2 | Data and Information

• VCDTDS001

  React to the use of some common digital systems, (hardware and software components), as they experience their purpose

  Elaborations

  • experiencing digital systems used within everyday life and school programs, for example phones, printers, cameras, multimedia presentations, tablets, games
  • using voice and body movements to make sounds in a microphone
  • experiencing cause and effect devices, for example touch keys on a banana keyboard
  • experiencing and playing with switches, for example a jelly bean switch
  • experiencing changes in a program due to the activation/deactivation of a switch by another, coactively or through individual exploration

  VCDTDS001 | Technologies | Digital Technologies | Level A | Digital Systems

• VCDTDI002

  React to patterns and different types of data and experience how data is sorted and represented as images using digital systems

  Elaborations

  • experiencing how their movements can create sounds and visual effects
  • using numeric data and displaying them as images, for example selecting and displaying photos of classmates who are present at school on a given day
  • experiencing the use of visual data, for example searching through a school-based digital photo library to select an image of themselves and significant people in their life
  • experiencing different types of data processing by digital systems, for example images, sound, text and numbers

  VCDTDI002 | Technologies | Digital Technologies | Level A | Data and Information

• VCDTCD052

  Design algorithms represented diagrammatically and in structured English and validate algorithms and programs through tracing and test cases

  Elaborations

  • designing algorithms to solve real-world problems and describing algorithms using flow charts and structured English, for example START, END, IF and UNTIL
  • recognising that different algorithms can solve a problem with different trade-offs
  • tracing algorithms to predict results and program state for a given input, for example desk checking or using an interactive debugging tool
  • using tracing techniques to test algorithms, for example desk checking an algorithm for a given input by stepping through the algorithm while keeping track of contents of the variables
  • developing test cases that correspond to the requirements of the specifications, for example validating program behaviour on a range of valid and invalid user input

  VCDTCD052 | Technologies | Digital Technologies | Levels 9 and 10 | Creating Digital Solutions

• VCDTDI028

  Acquire, store and validate different types of data and use a range of software to interpret and visualise data to create information

  Elaborations

  • using digital systems to validate data, for example setting data types in a spreadsheet to make sure a date is input correctly
  • selecting and using peripheral devices suitable to the data type, for example using a data probe to collect numeric data about changing soil temperatures for plants, interpreting the data and sharing the results as a digital graph
  • recognising the difference between numerical, text and date formats in spreadsheets
  • using software to automate calculations to help with interpreting data, for example using functions to make arithmetic calculations using multiple cells and summing cell ranges
  • acquiring data from online sources by narrowing the focus, for example filtering data using provided options or performing queries using advanced search functions
  • using data visualisation software to help in interpreting trends, for example uploading data to a web application and building a visualisation of the dataset

  VCDTDI028 | Technologies | Digital Technologies | Levels 5 and 6 | Data and Information

• VCDTCD041

  Design the user experience of a digital system, generating, evaluating and communicating alternative designs

  Elaborations

  • designing the user interface of a solution using a range of design tools, for example using a storyboard to explain the stages of a game, and wire-frames and mock-ups to describe the appearance of a solution
  • identifying features that make an effective game, such as storyline, goal, reward, gameplay and environment
  • identifying similar digital systems and their user interfaces, assessing whether user interface elements can be re-used
  • devising criteria and comparing alternative design ideas that address a problem, for example evaluating two design outlines on the basis of attractiveness, ergonomics, ease of use, emotional satisfaction and accessibility
  • applying the principles and elements of design to a series of solutions to evaluate the success of each solution in holding the viewer’s attention, for example identifying which colour combinations or framing of visual elements keep different audiences engaged with on-screen activity

  VCDTCD041 | Technologies | Digital Technologies | Levels 7 and 8 | Creating Digital Solutions

• VCDTCD025

  Explain how student-developed solutions and existing information systems meet common personal, school or community needs

  Elaborations

  • investigating how information systems are used in communities and explaining what needs are being met, for example students jointly creating a short survey and collecting data about how many community residents use the online library borrowing system to download e-books and why
  • visiting an online museum, for example accessing an international museum online and being able to zoom in on the textures of historic Asian objects
  • exploring information systems that suit particular home or personal needs, for example using speech recognition software that can help speakers whose language background is not English, or a system to monitor energy or water consumption in the home
  • testing the adequacy of student-developed solutions, for example asking a classmate to review a digital solution and provide feedback

  VCDTCD025 | Technologies | Digital Technologies | Levels 3 and 4 | Creating Digital Solutions

• VCDTCD051

  Design the user experience of a digital system, evaluating alternative designs against criteria including functionality, accessibility, usability and aesthetics

  Elaborations

  • designing the user interface of a solution using story boards and mock-ups, for example mocking up the product design of an app for people with disability
  • identifying similar digital systems and existing user interfaces, assessing whether their elements can be reused
  • evaluating aspects of the total user experience, that is, all aspects of the system as perceived by the users, for example, a user’s initial experience of setting up and using a system, or a user’s emotional or cultural response to using a digital system
  • designing documentation, branding and marketing for a digital solution, for example a product demonstration screencast or ‘getting started’ user guide
  • applying the principles and elements of design to a client’s requirements and evaluating the success of a solution through an iterative feedback process, for example using customer feedback to refine a user interface to provide access to important features more effectively

  VCDTCD051 | Technologies | Digital Technologies | Levels 9 and 10 | Creating Digital Solutions

• VCDTDI027

  Examine how whole numbers are used as the basis for representing all types of data in digital systems

  Elaborations

  • recognising that digital systems represent all types of data using number codes that ultimately are patterns of 1s and 0s
  • explaining that binary represents numbers using 1s and 0s and these represent the on and off electrical states respectively in hardware and robotics
  • recognising that the numbers 0, 1, 2 and 3 could be represented by the patterns of two binary digits of 00, 01, 10 and 11
  • representing whole numbers in binary, for example counting in binary from zero to 15, or writing a friend’s age in binary
  • exploring how division by two can be used as a technique to determine the binary representation of any whole number by collecting remainder terms
  • representing the state of an object in a game as active or inactive using the respective binary values of 1 or 0

  VCDTDI027 | Technologies | Digital Technologies | Levels 5 and 6 | Data and Information