France Cheong, Richard Lai*, Yong Soo Kim+, Dae Hoon Hwang+, Hae Suk Oh+ and Ji Hong Kim+
School of Business Information Technology
RMIT University
Victoria 3000, Australia
*Department of Computer Science and Computer Engineering
La Trobe University
Victoria, 3086, Australia
+College of Software
Kyungwon University
Songnam, Kyunggi-Do, 461-701, Korea