Recommendation 5 (Internet Voting) Estonia 2007
http://aceproject.org/ero-en/regions/europe/EE/estonia-election-assessment-mission-report/at_download/file
The OSCE/ODIHR recommends that a full scale end-to-end test be performed on the
entire system prior to each election. This would include all of the components and all
transactions in the process. It is also recommended to test the system with a known
outcome, for example, by predetermining how test voters should vote and comparing this
with the actual tabulation of their votes.