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Voting Machines: Make Your Vote Count!

Engineers Establish Accuracy and Usability Standards

September 1, 2006

Human-factors engineers, along with the National Institute of Standards and Technology (NIST) have developed a rigorous, standardized test for all electronic voting machines -- whose error rate is currently estimated at about 5 percent. The NIST test has people evaluate how easy a voting machine is to use and its accuracy at recording a voter's preferences

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Science Insider

Science behind the news is funded by a generous grant from the NSF

BACKGROUND: A key component of the Help America Vote Act of 2002 is to ensure that it is possible for all U.S. citizens to exercise their right to vote privately and independently. This breaks down into two parts: accessibility and usability. A Virginia-based company called User-Centered Design is working to demonstrate that it is possible to reliably measure the usability of voting machines, then the results can be compared to predetermined criteria. Its findings could one day have a major impact on how we vote.

THE ISSUES: Voter language and disabilities may prevent citizens from voting, as well as confusion when encountering unfamiliar electronic ballot machines. But aside from special issues, voting machines could be standardized so that the each machine's performance could be measured in order to ensure they provide correct vote tallies. Can the U.S. population learn and use a given system without making errors? And how can this be determined? Research can scientifically test these usability and performance issues to make sure the results are reliable and valid.

HOW WE VOTE: There have been many different kinds of voting systems used in the United States, and the approach varies from state to state, sometimes from district to district. With paper ballot systems, voters record their choices in private by marking the boxes next to the candidate they select and dropping the ballot into a sealed ballot box, which are then counted by hand. Mechanical voting machines connect each lever in an array to a specific candidate, and the voter pulls down selected levers to indicate his or her choice. Each lever is connected to a counter wheel to indicate the number of votes cast for each candidate. With punchcard systems, voters punch holes in cards to indicate their choices. The cards can be counted by hand or fed into a vote-counting device. Optical scan systems are similar to the way standardized tests are conducted: voters fill in ovals next to their choices with a pencil, and the cards are fed into a computer counting device that selects the darkest mark to count as a vote. The most recent type of system is direct recording electronic systems, an updated version of the old mechanical lever systems. The voter uses a computer touch-screen to indicate his or her choices which are electronically stored before being counted.

The Human Factors and Ergonomics Society contributed to the information contained in the TV portion of this report.

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Did you know?...

The paper ballot system was first adopted in the Australian state of Victoria in 1856. New York became the first U.S. state to adopt the paper ballot for state-wide elections in 1889.

More information on this story

Bill Killam, President
User-Centered Design, Inc.
Ashburn, VA 20147
Tel: 703-729-0998
bkillam@user-centereddesign.com

Human Factors and Ergonomics Society
Santa Monica, CA 90406
Tel: 310-394-1811