Stefan Popoveniuc is a doctoral student at George Washington University, working on computer security and privacy in general and on electronic voting in particular. He has fully implemented a couple of voting systems, Scantegrity and PunchScan being two of them. Before coming to GWU, Stefan received a BS in Computer Science from Politehnica University, Bucharest, Romania. Stefan is a member of the winning VoComp team, PunchScan. Currently, he is looking at the relations between the various properties that voting systems have, trying to establish a framework that would allow election officials to take informed decisions when purchasing voting system to use for their special needs.