Articles by Brad L. Aday

Brad L. Aday is an industrial engineering undergraduate student of Ingram School of Engineering at Texas State University-San Marcos.

Usability Evaluation of Randomized Keypad

Abstract In this work, the usability of a randomized numeric keypad was examined and compared to the usability of a conventional numeric keypad. The comparison used completion time measurements and the error rate of short (4 digit) and long (8-digit) PINs to contrast efficiency and accuracy of the keypads. The results showed that the average […] [Read More]