I 1 8 lot sizing schemes lot for lot lfl economic

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Unformatted text preview: t Sizing Schemes Lot for Lot – LFL Economic Order Quantity – EOQ Period Order Quantity – POQ Part Period Balancing - PPB Silver-Meal Heuristic Silver Least Unit Cost Least Example Demand is as following for the weeks ahead. Demand 124, 60, 316, 183, 0, 55, 43, 154, 0, 0, 114, 171 setup cost = $100 carrying (holding) cost = $0.20 per week per unit Lead time = 0 Apply different lot sizing schemes to determine the most Apply cost efficient lot size. Compare the total costs? 9 Example A 2 B level 0 3 C X 3 B level 1 level 0 1 Y level 1 Example End Item A – Demand = 40,10,0,30,15,20,0,80 Lot Size = EOQ, Setup Cost = $100, holding cost = 0,5 Lot EOQ, Lead Time = 2 weeks Beginning on hand inventory = 20units Scheduled Receipts – Week 1 = 45units Scheduled End Item X – Demand = 50,30,80,0,60,50,10,20 Lot Size = POQ, Setup Cost = $100, holding cost = 0,6 Lot POQ, Lead Time = 3 weeks Beginning on hand inventory = 80units Scheduled Receipts – Week 2 = 100 Scheduled Safety Stock = 20units 10 Example Component Material C Lot Size = PPB PPB Lead Time = 2 weeks Beginning on hand inventory = 200units Component Material Y Component Lot Size = LFL Lot LFL Lead Time = 1 week Beginning on hand inventory = 57units Component Material B Component Lot Size = 100units Lead Time = 1 week Beginning on hand inventory = 225units Safety Stock = 50units Example Projected Requirement Scheduled Receipts On hand.inv(end of week) Planned order release 11 Shortcomings of MRP Uncertainty. MRP ignores demand uncertainty, supply Uncertainty MRP uncertainty, and internal uncertainties that arise in the manufacturing uncertainty, cturing process. Capacity Plan...
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