Anthropometrics: Important Aspects of Users’ Bodies - Foundations for Designing User-Centered Systems - page 68

Fig. 3.12 An example phone
interface (Jitterbug Plus)
designed with larger buttons
and a simpler interface.
Taken from www.greatcall.
com (used with permission)
In immersive environments users still receive most of their feedback on their
actions and movements through the visual channel. Where there is a mismatch
between the visual scene and the inner ear's movement, however, this can lead to
nausea. Full motion simulators attempt to provide some of this information by
providing initiating cues to the motion. How to provide this information to a user
remains a technical problem that is informed by knowledge about the user.
3.3.6 Other Devices
Other devices have introduced some other novel methods of interaction. Apple's
iPod, for example, incorporated the idea of using a dial which, when rotated,
produces behavior similar to that of a scroll bar, as shown in Fig. 3.13 . When it
was introduced this was quite novel, and many users liked it.