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Reorder point. The reorder point ( ROP ), also reorder level (ROL) or "optimal re-order level", [1] is the level of inventory which triggers an action to replenish that particular inventory. It is a minimum amount of an item which a firm holds in stock, such that, when stock falls to this amount, the item must be reordered.
Constant fill rate for the part being produced: Economic production quantity. Demand is random: classical Newsvendor model. Demand is random, continuous replenishment: Base stock model. Demand varies deterministically over time: Dynamic lot size model. Several products produced on the same machine: Economic lot scheduling problem.
Lead time. A lead time is the latency between the initiation and completion of a process. For example, the lead time between the placement of an order and delivery of new cars by a given manufacturer might be between 2 weeks and 6 months, depending on various particularities. One business dictionary defines "manufacturing lead time" as the ...
Illustration of the bullwhip effect: the final customer places an order (whip), which increasingly distorts interpretations of demand as one proceeds upstream along the supply chain. The bullwhip effect is a supply chain phenomenon where orders to suppliers tend to have a larger variability than sales to buyers, which results in an amplified ...
Material requirements planning. Material requirements planning ( MRP) is a production planning, scheduling, and inventory control system used to manage manufacturing processes. Most MRP systems are software -based, but it is possible to conduct MRP by hand as well. An MRP system is intended to simultaneously meet three objectives:
Base stock model. (Redirected from Base Stock Model) The base stock model is a statistical model in inventory theory. [ 1] In this model inventory is refilled one unit at a time and demand is random. If there is only one replenishment, then the problem can be solved with the newsvendor model .
Lead time is the delay between the time the reorder point (inventory level which initiates an order [8]) is reached and renewed availability. Service level is the desired probability of meeting demand during the lead time without a stockout. If the service level is increased, the required safety stock increases, as well.
Inventory ( American English) or stock ( British English) refers to the goods and materials that a business holds for the ultimate goal of resale, production or utilisation. [ nb 1] Inventory management is a discipline primarily about specifying the shape and placement of stocked goods. It is required at different locations within a facility or ...