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Voting System Definitions

Non-absentee voting is typically performed on one of the below types of voting systems:

• DIRECT RECORDING ELECTRONIC (DRE)
  This voting system directly records the voter’s selections in each race or contest on the ballot in electronic form.
   
• DRE SYSTEM WITH VOTER-VERIFIED PAPER TRAIL (VVPT)
  Typically a touch-screen DRE system designed to capture voter choices both internally in electronic form and, simultaneously, on paper as a voter-verified record.
   
• PRECINCT COUNTED OPTICAL SCAN BASED VOTING (PCOS)
  A voting system where voters mark paper ballots, typically with pencils, independent of any machine, and hand carry their sleeved ballots to un-sleeve and insert into scanners that optically sense their votes.
   
• BALLOT MARKING DEVICE (BMD) BASED
  Typically an accessible computer-based voting system that produces a marked ballot (usually paper) that is the result of voter interaction with visual or audio prompts.

View an all-in-one document describing the four primary voting device types.

View a document describing scenario assumptions for voting device types.