Like many people, Alan Dechert was outraged when the 2000 presidential election was thrown to the Supreme Court because nobody could figure out how Florida's voters had voted. An engineer who has designed and tested software for a living, he thinks the outcomes of elections should never be in doubt. So Dechert and a couple of colleagues founded the Open Voting Consortium, a nonprofit group dedicated to delivering "trustable and open voting systems." In addition to lobbying against proprietary voting machines, they have spent the last several years working with scientists and engineers around the world to design and build a voting machine of their own. On Tuesday their machine will be put to the test at LinuxWorld in San Francisco, where the 10,000 people who are expected to attend the conference will get to vote in a mock presidential election pitting Barack Obama against John McCain. "The voting system in the U.S. is still not sufficiently accurate to determine the winner in a very close election," said Dechert, who has worked at Borland International and Intel developing and testing software. "By the time we're done (with the mock election), nobody will have any doubt." The code that runs this voting machine is based on the work of a former [U.C.] Berkeley student, Ka-Ping Yee, who now works at Google. At a price of about $400, the new voting machine is a tenth of the cost of proprietary machines ... because it's simply designed and based on free software. Its workings are transparent, he said, unlike some of the electronic voting machines that California decertified for security problems.