VotePower system again...
From another article:
The new proposal, offered by TGDC member Ronald Rivest, a computer science professor at the Massachusetts Institute of Technology, calls on the subcommittee to write requirements for the next generation of e-voting machines that make them "software independent" -- to include an audit mechanism independent of the software inside the machines.
From a VotePower Filing:
In VotePower solution, all ballots cast through the touch screen (DRE) machine are stored in two redundant (independent) servers and therefore the damage to the voting device in any form does not affect the cast ballots. This process also helps in tabulation as there is only one device per polling site to tabulate versus tabulating of all the DREs at the polling site, which is what is offered by other vendors.