A monthly order plan optimization model is formulated based on the studies on the monthly order planning strategies,constraints and objectives under make-to-order (MTO) management mode in steel plant.

• 以某钢铁企业的实际合同月计划问题作为实例,对模型和算法进行了系统地验证,计算结果表明模型和算法在优化效果和运算效率方面均优于该企业现有合同计划系统。