The COTMAN program consists of two expert system: SQUAREMAN and BOLLMAN. SQUAREMAN uses SquareMap data to determine square retention and squaring nodes (plus other variables). BOLLMAN uses nodes-above-white-flower (NAWF) data to measure squaring nodes. Squaring nodes by days from planting (DAP) provide a crop growth curve throughout fruiting period. Before evaluating the crop growth curve, the user must consider the level of square retention, the target development curve (TDC) and the latest possible cutout (LPC) date.