LAURENCE T. YANG is a Professor in the Department of Computer Science, St. Francis Xavier University, Canada.

AGUSTINUS BORGY WALUYO is a Researcher at the Centre for Distributed Systems and Software Engineering, Mobility Lab, Monash University, Australia.

JIANHUA MA is a Professor in the Faculty of Computer and Information Sciences of Hosei University, Japan.

LING TAN is a Research Fellow at the Assessment and Reporting division of the Australian Council for Educational Research.

BALA SRINIVASAN is a Professor of Information Technology and head of the Clayton School of Information Technology in the Faculty of Information Technology, Monash University, Australia.