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• Digital Technologies: Levels 9 and 10 description

  In Levels 9 and 10, students apply systems thinking skills when considering how human interaction with networked systems introduces complexities surrounding access to, and the security and privacy of, data of various types. They interrogate security practices and techniques used to compress data...

  Level description | Technologies | Digital Technologies

• 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

• 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

• VCDTCD053

  Develop modular programs, applying selected algorithms and data structures including using an object-oriented programming language

  Elaborations

  • coding separate modules that perform discrete functions but collectively meet the needs of the solution
  • defining classes that represent the attributes and behaviour of objects in the real world or in a game
  • considering different algorithms and selecting the most appropriate based on the type of problem, for example branching algorithms suit optimisation problems and simple recursive algorithms solve the base cases directly
  • selecting different types of data structures such as an array, record and object to model structured data

  VCDTCD053 | Technologies | Digital Technologies | Levels 9 and 10 | Creating Digital Solutions

• 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

• 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