19Th International Congress on Modelling and Simulation (Modsim), Date: DEC 12-16, 2011, Location: Perth, AUSTRALIA, Sponsors: CSIRO, Australian Govt, Bur Meteorol, Per Convent & Exhibit Ctr, Perth Convent Bur, Curtin Univ, Australian Math Soc (Aust MS), Australian & New Zealand Ind & Appl Math (ANZIAM), Australian Math Sci Inst (AMSI), Maralte Publishers, Econ Soc Australian (ESA), HEMA Consulting, Simulat Australia, Stat Soc Australia Inc (SSAI), Modelling & Simulat Soc Australia & New Zealand Inc (MSSANZ), Int Assoc Math & Comp Simulat (IMACS)