In this paper, we describe the I-Vote system for audience response voting at the Olympic Games. The audience members vote by using a $2 handheld device that they can keep as a souvenir. The devices are simple to use, come in multiple designs, and are tradable. These devices do not hold any personal information so privacy is never an issue. The vote results are presented on a large public display, which is loaded with information in the form of graphs that are quickly understood. People can retrieve their personal votes later on the Internet. The system was designed through a process involving brainstorming, creating scenarios, searching for information, doing cognitive walkthroughs, developing prototypes, and revising and refining ideas.
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