12. Variable or Fixed Reorder Periods

There are many ways to review vendors for ordering. The models considered are the Fixed Period Model (FP), the Fixed Quantity Model (FQ), and the Variable Period and Quantity Model (VPQ). The Fixed Quantity Model and Fixed Order Model mean the same thing in this book and are used interchangeably. The fixed quantity refers to the fixed order quantity. The Fixed Period Model allows for ordering for a fixed period of time. It may be every week, every four weeks, or once a month. The key is that no orders are permitted between intervals. The Fixed Quantity Model can set up minimum inventory levels or reorder quantities per item. When the stock falls below this quantity, place another order in a fixed quantity ...

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