'Lead time demand' diaporamas de présentation

Chapter 11 Inventory Management

Chapter 11 Inventory Management. Pencils, papers, clips, advertisements-flyer, visiting cards, nuts, bolts, trucks, needles, airplanes Raw materials, semi-finished goods, finished goods What is the worth? Let top management see the money withheld ?. Inventory- a stock or store of goods.

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Chapter Fifteen Independent Demand Inventory

Chapter Fifteen Independent Demand Inventory. Operations Management Contemporary Concepts and Cases 5/e. Chapter 15 Outline. Purpose of Inventories Costs of Inventories Independent versus Dependent Demand Economic Order Quantity Continuous Review System Periodic Review System

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Inventory Models

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Frequency & Safety Stock

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Frequency & Safety Stock

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Time

Demand During Lead Time. Inventory. Time. ROP when demand during lead time is fixed. LT. Demand During Lead Time is Variable. LT. Demand During Lead Time is Variable. Inventory. Time. Safety Stock. Quantity. A large demand during lead time. Average demand during lead time. ROP.

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a) If average demand per day is 20 units and lead time is 10 days. Assuming zero safety stock. ss =0, compute ROP.

ROP Problems. a) If average demand per day is 20 units and lead time is 10 days. Assuming zero safety stock. ss =0, compute ROP. b) If average demand per day is 20 units and lead time is 10 days. Assuming 70 units of safety stock. ss =70 , compute ROP?

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Module C5

Module C5. Reorder Point/Service Levels. DETERMINING A REORDER POINT, r* (Without Safety Stock). Suppose lead time is 8 working days The company operates 260 days per year r* = LD where L and D are in the same time units L = 8/260 ? .0308 yrs D = 6240 /year r* = .0308(6240) ? 192

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Centralization and ROP

Centralization and ROP. There are N warehouses. Each with lead time demand of LTD and with standard deviation of lead time demand of ? LTD. If demand in each warehouse is independent of demand in other warehouses. If they order all together and have a centralized safety stock then

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