The testing of randomly selected voting machines during an election. A "process designed to detect the potential presence of malicious code in the software of a voting machine. It requires a specific number of voting machines to be removed from random poll sites before voting begins. These machines are then test-voted throughout election day." Wash. Admin. Code §434-335-510. This method was proposed by Michael Shamos in 2003 to detect systems programmed to behave differently while the polls are open, thus defying pre- and post-election TESTING. Also LOGIC AND ACCURACY PARALLEL MONITORING.
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The testing of randomly selected voting machines during an election. A "process designed to detect the potential presence of malicious code in the software of a voting machine. It requires a specific number of voting machines to be removed from random poll sites before voting begins. These machines are then test-voted throughout election day." Wash. Admin. Code §434-335-510. This method was proposed by Michael Shamos in 2003 to detect systems programmed to behave differently while the polls are open, thus defying pre- and post-election TESTING. Also LOGIC AND ACCURACY PARALLEL MONITORING.
Cite this term
Election Security Glossary. (2026). Parallel Testing. In Election Security Glossary. Retrieved August 22, 2026, from https://electionsecurityglossary.com/glossary/parallel-testing
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