First Author:   Huong Vu University of Waikato vhv1@students.waikato.ac.nz         Second Author: Steven Lim University of Waikato slim1@waikato.ac.nz         Third Author: Mark Holmes University of Waikato holmesmj@waikato.ac.nz         Fourth Author: Tinh Doan Ministry of Business, Innovation and Employment Government of New Zealand Tinh.Doan@med.govt.nz