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The following information was taken in part from the 3M Profile Sensor Planning Guide (
October 2001)
Touch Application Design:
With any touch application, the design can be crucial to the usability of the final product. Clear icons,
bright contrasting colors, large buttons, and simple layouts will go a long way towards the success of
your installation.
Parallax, the effect of a target object appearing in different positions when looked at from different
angles, is a common problem in touch applications.
The combination of the touch screen in front of the display and differing heights of users can cause
parallax. When designing your touch system software application, use the following guidelines to help
reduce the effects of parallax.
• Design large buttons to facilitate touch. Remember that a fingertip is much
larger than a cursor.
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June 2008 v1.2
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