User Research of a Voting Machine: Preliminary Findings and Experiences
http://www.usabilityprofessionals.org/upa_publications/jus/2007august/voting-machine.pdf
  peer-reviewed

de Jong, Menno D.T., Joris van Hoof and Jordy Gosselt
Journal of Usability Studies
2007

Abstract:

This paper describes a usability study of the Nedap voting machine in the Netherlands. On the day of the national elections, 566 voters participated in our study immediately after having cast their real vote. The research focused on the correspondence between voter intents and voting results, distinguishing between usability (correspondence between voter intents and voter input) and machine reliability (correspondence between voter input and machine output). For the sake of comparison, participants also cast their votes using a paper ballot.