I don't know exactly how to do it but,
1 how the user moves the finger or fingers,
2 the user may need to hold the handset differently, like for the # key
3 where the user sees on the display/keypad, and how his focus moves
#1 and #2 may be derived from keystrokes, but you need statistic data
to set up a model first. less keystrokes doesn't necessarily mean
less effort or less stress.
I heard Microsoft has a lab with video cameras shooting from different
angles to study Windows and applications.
as for the physical design of the handset, I heard Japanese companies
(Sony is one) have collected thousands of ear shapes from the people
around the world to design ear plugs/phones. but I haven't heard any
handset maker has done similar study for mobiles.
cheers,
Ken
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Received on Thu Jul 17 14:02:31 2003