制定允许对原材料和备件的可用性进行预先规划的计划。从不受约束的计划开始，并通过识别生产所需的关键材料、检查材料规格以及与所有供应商就供应进行合作，根据供应链的实际情况进行改进。 Developing a scheme that allows for advance planning for the availability of raw materials and spares. Start with an unconstrained plan, and refine based on supply chain realities by identifying critical materials required for production, checking material specifications, and collaborating with all vendors over the supply.