Demand forecasting precision is the source of the whole supply chain management, which reflects the fluctuation of demand of market. The shortage of products will bring huge losses to the enterprise. Enterprises need to establish accurate demand forecasting program through effective analysis means, to premote the prediction accuracy, and provide a relatively effective decision-making reference.%精准的需求预测是管理整条供应链的源头，是反应市场需求波动的晴雨表，产品的缺货和脱销将给企业带来巨大损失。企业需要通过有效的预测分析手段制定精确的需求预测计划，提高预测精度，从而提供相对有效的决策参考。
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