TSONG YUEH CHEN1, DE HAO HUANG2 AND ZHI QUAN ZHOU3,+
1Faculty of Information and Communication Technologies
2Information Technology Services
Swinburne University of Technology
Hawthorn, Victoria 3122, Australia
3School of Computer Science and Software Engineering
University of Wollongong
Wollongong, NSW 2522, Australia
+E-mail: zhiquan@uow.edu.au