4.2 Inventory Cost Key points: inventory cost; cycle inventory; fixed ordering cost; holding cost Difficult points: cycle inventory; fixed ordering cost Requirements: By the end of this lesson, you should be able to describe cycle inventory. understand the concept of the fixed ordering cost. understand the concept of hold cost understand the effects which should be considered in any lot sizing decision.4.2 Inventory Cost Key points: inventory cost; cycle inventory; fixed ordering cost; holding cost Difficult points: cycle inventory; fixed ordering cost Requirements： By the end of this lesson, you should be able to describe cycle inventory. understand the concept of the fixed ordering cost. understand the concept of hold cost. understand the effects which should be considered in any lot sizing decision