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The oldest optical-scan voting systems scan ballots using optical mark recognition scanners. Voters mark their choice in a voting response location, usually filling a rectangle, circle or oval, or by completing an arrow. Various mark-sense voting systems have used a variety of different approaches to determining what marks are counted as votes.
Scantegrity II ballot and decoder pen. Left: Unmarked optical scan bubble. Right: Marked optical scan bubble revealing confirmation code "FY" The Scantegrity II voting procedure is similar to that of a traditional optical scan voting system, except that each voting response location contains a random confirmation code printed in invisible ink. [4]
Punchscan is an optical scan vote counting system invented by cryptographer David Chaum. Punchscan is designed to offer integrity, privacy, and transparency. The system is voter-verifiable, provides an end-to-end (E2E) audit mechanism, and issues a ballot receipt to each voter. The system won grand prize at the 2007 University Voting Systems ...
1964: The Norden-Coleman optical scan voting system, the first such system to see actual use, was adopted for use in Orange County, California. [217] 1974: The Video Voter, the first DRE voting machine used in a government election, developed by the Frank Thornber Company in Chicago, Illinois, saw its first trial use in 1974 near Chicago. [218]
The DS200 accepts two types of ballots: an optical scan ballot which is the regular ballot used in every election and ballot scan cards from ExpressVote machines.
In a DRE voting machine system, a touch screen displays choices to the voter, who selects choices, and can change their mind as often as needed, before casting the vote. Staff initialize each voter once on the machine, to avoid repeat voting. Voting data are recorded in memory components, and can be copied out at the end of the election.
The letter sent by nearly two dozen computer scientists, election security experts and voter advocacy organizations asks for a federal probe and a risk assessment of voting machines used ...
Rather than replacing the entire voting system, as is the case in all the preceding examples, it works as an add-on for existing optical scan voting systems, producing conventional voter-verifiable paper ballots suitable for risk-limiting audits. Scantegrity II employs invisible ink and was developed by a team that included Chaum, Rivest, and Ryan