Re: Scanner, write-ins, printer (was Re: Barcode -- printed ballot)

From: Jan Karrman <jan_at_it_dot_uu_dot_se>
Date: Tue Oct 07 2003 - 14:14:10 CDT

On Tue, 7 Oct 2003, Alan Dechert wrote:

> Another checking routine could ensure that the number represents a valid
> ballot -- i.e., only one (or none) selection in contests 1 - 11, no more
> than 3 cat catchers, no more than one ranking possible for county
> commissioners. I would guess that the probability is very high that any
> mistake in reading the number would also cause an invalid ballot. I mean
> there are 2^116 possible strings of zeros and ones 116 digits long but only
> a very small percentage (tiny fraction of one percent) of those would
> represent valid ballots.
>
> This would help catch any incorrect barcode reads and would also help
> validate the logic of the ballot data entry routine.
>

Yes, of course, much better. If I got it correct, there are only
109830 different valid ballots for the demo (if all blank votes are
allowed). That is only about 10^-30 of the possible strings of zeros
and ones.

/Jan
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Received on Fri Oct 31 23:17:02 2003

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