The exact mechanism won’t be standardized, some places fill in ballots with pen today, let the voter feed it into the machine and optically scans to tabulate, a

The exact mechanism won’t be standardized, some places fill in ballots with pen today, let the voter feed it into the machine and optically scans to tabulate, and others use a computer that tabulates and (usually?) spools a paper record that’s behind a window so the voter can see that the paper record is accurate. The important part is the actual methodology itself.