4.6 KiB
4.6 KiB
Validation
STV-counting software is frequently validated empirically by comparing the results of election counts to those generated by independent implementations. See, for example, [1–5]. The table describes the empirical validation performed on OpenTally to date.
| Method | Election | Comparator | Included test case |
|---|---|---|---|
| Scottish STV | 2007 Glasgow council Linn ward election | eSTV 2.0.16 (official) | ✓ |
| OpenTally Meek | Reverse engineered ballot papers for the ERS97 model election | Algorithm 123 | ✓ |
| Meek STV (2006) | Reverse engineered ballot papers for the ERS97 model election | OpenSTV 1.7 | ✓ |
| Meek STV (New Zealand) | Reverse engineered ballot papers for the ERS97 model election | OpenSTV 1.7, Hill's nzmeek 6.7.7 | ✓ |
| Australian Senate STV | 2019 Tasmanian Senate election | EasyCount (official) | ✓ |
| Australian Senate STV | 2019 NSW Senate election | EasyCount (official) | |
| Australian Capital Territory STV | 2020 Kurrajong Legislative Assembly election | eVACS 2020 (official) | ✓ |
| Minneapolis STV | 2009 Minneapolis Board of Estimate and Taxation election | Results sheet (official) | ✓ |
| Minneapolis STV | 2013 Minneapolis Parks & Recreation Commissioner At Large election | Results sheet (official) | ✓ |
| Cambridge STV | 2003 Cambridge City Council election | OpenSTV 1.7, ChoicePlus Pro 2.1 (official) | ✓ |
| Wright STV | EVE Online CSM 15 election | ccp-wright-stv (official) | ✓ |
| PRSA 1977 | Proportional Representation Manual example 1 | Model result (official) | ✓ |
| ERS97 | Reverse engineered ballot papers for the ERS97 model election | Model result (official) | ✓ |
| ERS97 | Joe Otten/eSTV ballot papers for the ERS97 model election | Model result (official) | ✓ |
| ERS76 | Ballot papers adapted from Joe Otten/eSTV ERS97 papers | Model result (official) | ✓ |
References
- Wichmann BA. Checking two STV programs. Voting Matters. 2000 Apr; (11): 6–8. http://www.votingmatters.org.uk/ISSUE11/P4.HTM
- Wichmann BA. Validation of implementation of the Meek algorithm for STV. London: McDougall Trust; 2000 Apr 28. http://www.votingmatters.org.uk/RES/MKVAL.pdf
- Koopman P, Hubbers E, Pieters W, Poll E, de Vries R. Testing the eSTV program for the Scottish local government elections. Nijmegen (NL): Radboud University; 2007 Mar 30. https://research.utwente.nl/en/publications/testing-the-estv-program-for-the-scottish-local-government-electi
- Conway A, Blom M, Naish L, Teague V. An analysis of New South Wales electronic vote counting. ACSW '17: Proceedings of the Australasian Computer Science Week multiconference. New York: Association for Computing Machinery; 2017 Jan. doi: 10.1145/3014812.3014837
- Abate P, Dawson J, Goré R, Gray M, Norrish M, Slater A. Formal methods applied to electronic voting systems. Canberra: Australian National University; c2003. https://users.cecs.anu.edu.au/~rpg/EVoting/