Profitability of cotton production is being theathened by resource limitations and reduced margins. The impact of agronomic decisions affect profitability and many of these decisions involve a degree of risk associated with factors such as rainfall variability. In many situations, history can serve as our best guide to the potential risks or benefits of a particular strategies. This knowledge can be tempered with local information to provide a basis for making informed decisions with a reasonable understanding of the risks and benefits. The use of crop models is an ideal and can be often the only way to address these sorts of issues.This project primarily focused on identifying and researching the most appropriate means of delivering systems simulation to industry clients'.