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People & ICT Systems (Who is it designed for? (Office worker- type…

- - - - User responds to prompts
      - By typing in a command
      - Text is output
      - Useful for expert users who know commands
    - - Less demanding on system resources since no graphics and faster response time
      - Good for expert users - can quickly access commands 'can still control setup process through knowleadge of commands'
      - Unlikely to crash as it is so simple
    - - User needs to know commands and know what they mean in order to use it effectively
      - Beginners will need a lot of training before they can use if effectively
      - Hard to undo operations
  - - - Type of interface where the user navigates through menus and sub menus in order to achieve a specific task
    - - Easy for novice users to use - little or no need of training
      - Speed of use - select with single clicks
      - Reduce errors - since restricted choice of options (validate data entry)
    - - Can take time to reach the correct option, you can only do what the buttons allow you to do
      - Can fustrate expert users
      - If not desgined well, can be difficult to use
  - - - enter data into a form - boxes on screen
      - May be able to navigate between records
    - - Similar to paper forms
      - Automatically validated
      - Easy to program
    - - Required more system resources than command line and menu driven interface
      - Only limited options presented
      - Not good for highly complex applications
  - - - Icons
      - Menus
      - Windows
      - Pointer
    - - Simple to use as easy to change the views
      - Pictorially represent an action with clear univesal meaning
      - Allows objects to be dragged and dropped and on-screen selection of objects
    - - Expensive to set up
      - Need a lot of memory
      - Need high spec computer to run
      - Frustrating for expert users since you have to go through several levels of windows before you find what you need
  - - - Speak in commands instead of navigating through menus,clicking on icons or typing commands
    - - No need for training
      - Can speak commands - this may be quicker and it also frees up hands
      - Can type using normal day to day language without worrying about specifickeywords/instructions
    - - Need to know roughly what you are looking for
      - Not often used as other interfaces are superior
      - Need to use gramatically correct english