Accuracy

1. Extent to which a given measurement agrees with an accepted standard for that measurement.

2. Closeness of the agreement between the result of a measurement and a true value of the particular quantity subject to measurement. Accuracy is a qualitative concept and is not interchangeable with precision. Version 1.0 Volume I: Voting System Performance Guidelines Appendix A: Glossary A-4

Source: Glossary of terms database, U.S. Election Assistance Commission, https://www.eac.gov/glossary/

3. The ability of a system to capture and tabulate votes with precision.

4. The ability of a voting system to “capture, record, store, consolidate and report the specific selections and absence of selections, made by the voter for each ballot position without error. Required accuracy is defined in terms of an error rate that for testing purposes represents the maximum number of errors allowed while processing a specified volume of data.” Voting System Standards (VSS).

5. The “(1) Extent to which a given measurement agrees with an accepted standard for that measurement (2) Closeness of the agreement between the result of a measurement and a true value of the particular quantity subject to measurement. Accuracy is a qualitative concept and is not interchangeable with precision.” 2005 Voluntary Voting System Guidelines (VVSG) Glossary.

Source: Electronic Voting Glossary, Michael I. Shamos, https://collaborate.nist.gov/voting/pub/Voting/Glossary/Shamos-Election-Glossary.pdf