This is the final report on Phase I of the project undertaken by ROBBERT Associates as part of the Technology Evaluation and Development (TED) Sub-Program of the Soil and Water Environmental Enhancement Program (SWEEP). The project consisted of the design and implementation of a prototype computer based farm management simulation framework that can be used at the level of the individual farm to examine the impact of tillage and cropping decisions on soil quality, nutrient loss to runoff, and farm income. The objective was to determine whether modelling techniques might be useful to effect the transfer of technology from the scientific community to the farm.