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• 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

• VCDTCD032

  Design, modify and follow simple algorithms represented diagrammatically and in English, involving sequences of steps, branching, and iteration

  Elaborations

  • following a diagram of a simple method of sorting numbers or words
  • following, modifying and describing the design of a game involving simple algorithms represented diagrammatically or in English, for example creating a flowchart with software that uses symbols to show decisions, processes and inputs and outputs
  • experimenting with different ways of representing an instruction to make a choice, for example branches in a tree diagram or using an ‘IF’ statement to indicate making a choice between two different circumstances using a spreadsheet or a visual program
  • experimenting with different ways of representing an instruction to make a repetition, for example loops in a flowchart diagram or using a ‘REPEAT’ statement
  • designing the instructions for a robot vacuum cleaner to clean a room
  • using different design tools to record ways in which digital solutions will be developed, for example creating storyboards or flowcharts to record relationships or instructions about content or processes

  VCDTCD032 | Technologies | Digital Technologies | Levels 5 and 6 | Creating Digital Solutions

• VCDTCD042

  Design algorithms represented diagrammatically and in English, and trace algorithms to predict output for a given input and to identify errors

  Elaborations

  • investigating and designing some common algorithms, such as to search, sequence, sort, merge and control data structures
  • checking the accuracy of an algorithm before it is implemented, for example desk checking it with test data to see if the instructions produce the expected results
  • using diagrams to describe key decisions, for example creating flowcharts using digital systems to describe a set of computational instructions
  • using structured English to express algorithmic instructions, for example using conventional statements such as ‘while’ and ‘endwhile’ in a ‘while loop’ when describing interactive instruction

  VCDTCD042 | Technologies | Digital Technologies | Levels 7 and 8 | Creating Digital Solutions

• VCDTCD024

  Develop simple solutions as visual programs

  Elaborations

  • designing and developing a simple interactive digital solution using a visual programming language, for example preparing the content and design of a simple guessing game that provides options in English and an Asian language
  • exploring common elements of standard user interfaces that are familiar and appeal to users, for example navigation links on the left and top of web pages to help users interact with the site
  • developing programs that make decisions on the basis of user input or choices such as through selecting a button, pushing a key or moving a mouse to ‘branch’ to a different segment of the solution
  • creating options for users to make choices in solutions, for example a user input and branching mechanism such as buttons in a slideshow to allow users to make choices

  VCDTCD024 | Technologies | Digital Technologies | Levels 3 and 4 | 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