exercises

10. universal design

EXERCISE 10.9 [extra - not in book]

Consider a user with limited hand coordination, or one with poor eyesight. It is clear that typical computer systems, with their reliance on hand-eye coordination and highly detailed visual output, disadvantage such people. List a number of devices that have been developed to assist users with special needs, identifying whether they assist the user in achieving the same sort of interaction as a non-special-needs user, or whether they adapt the computer explicitly to help the person concerned and so move away from the keyboard+mouse+screen style of interaction.

answer available for tutors only

Devices include:

  • Reactive keyboard: same interaction
  • Eye gaze: different interaction
  • Keyboard driver: same interaction
  • Braille output: different interaction
  • Haptic devices: different interaction
  • Speech/sound: different interaction

Other exercises in this chapter

ex.10.1 (tut), ex.10.2 (tut), ex.10.3 (tut), ex.10.4 (tut), ex.10.5 (tut), ex.10.6 (tut), ex.10.7 (tut), ex.10.8 (ans), ex.10.9 (tut), ex.10.10 (tut)

all exercises for this chapter