During tests, our design works as expected. The primary metric for our project would be accuracy. This has been tested to the best of our ability, but since we don't have the means to performa a large scale deployment, we are unable to fully test the expandability. We have been able to accurately tally up votes and display them on the PC interface. In addition, extensive testing has been done on the communication via the two-wire-interface. We have ensured that a robust protocol controls the data flow between the various clients and the server. When two clients try to communicate with the server at once, proper measures are taken to keep one person talking at at time.
In our experience, our design has not caused any sort of interference with neighboring devices. It does not generate or emit any sort of harmful interference that could damage another device. By keeping the interface simple, most users will be able to quickly adapt and enter information.