Touchscreens for Voting Machines

From: Arthur Keller <arthur_at_kellers_dot_org>
Date: Thu Nov 02 2006 - 13:16:21 CST

The Achilles heel of touchscreen voting machines (including
electronic ballot printers and electronic markers, not just DREs) is
the need to calibrate the touchscreens. My guess is that a
significant portion of the "vote jumping" problems are due to
miscalibrated touchscreens. My experience with the only vote jumping
problem I encountered as a precinct inspector what that recalibration
fixed the problem.

I have two suggestions:

1. All touchscreen voting machines should allow recalibration in the
middle of a ballot session. This way, the voter can complete the
process correctly. If the voter has made some selections already,
the Sequoia Edge will not allow the ballot session to be cancelled
(with the voter casting a vote on another voting machine).

2. ATMs have buttons down one or both sides of the screen. The view
alignment is often off because of the thickness of the bezel, so the
alignment of the buttons and the legends on the screen varies based
on the height of the viewer. However, a strip of buttons akin to a
"chicklets keyboard" (like the PC jr. keyboard) stuck to the side(s)
of the LCD would not have this problem, as the thickness of the bezel
and keyboard would be less.

Does anyone have a source for a thin strip of buttons (about 1 inch
square) with a keyboard-style computer interface that can be affixed
to one or both sides of a 17" LCD monitor?


Best regards,

Arthur M. Keller, Ph.D., 3881 Corina Way, Palo Alto, CA  94303-4507
tel +1(650)424-0202, fax +1(650)424-0424
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Received on Thu Nov 30 23:17:03 2006

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