Beer Game – Supply Chain Simulation
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Transcript of Beer Game – Supply Chain Simulation
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Beer Game – Supply Chain Simulation
Dr. CK Farn2006 Spring
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中央大學。范錚強 2
Simulation Settings
Overly simplified supply chainSelling kegs of beer
RolesFactory (warehouse)DistributorWholesalerRetailer
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中央大學。范錚強 3
Supply Channels
Factory
Distributor
Wholesaler
Retailer
訂單
訂單
訂單
Factory
Distributor
Wholesaler
Retailer
訂單
訂單
訂單
Order
Order
Order
Order processingdelays
Transportdelays
From shop floor
To Consumers
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中央大學。范錚強 4
Retailer
Order beer from wholesalerManages inventory levelsSells/ships beer to fill end-consumer’s orders
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中央大學。范錚強 5
Wholesaler
Order beer from distributorManages inventory levelsSells/ships beer to fill retailer’s orders
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中央大學。范錚強 6
Distributor
Order beer from factory warehouseManages inventory levelsSells/ships beer to fill wholesaler’s orders
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中央大學。范錚強 7
Factory
Schedule beer production in factoryManages finished goods inventory levelsSells/ships beer to fill distributor’s orders
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中央大學。范錚強 8
Leadtimes
Order processing delayTransportation delay
Unit cycle time: one week
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中央大學。范錚強 9
Cost structure
Inventory holding cost: $1 for each keg of beer in the inventory at the end of each week
Lost of sales cost$2 for each keg of beer that is backlogged at the end of each week
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中央大學。范錚強 10
What you should do every week
Receive beer from upstream supplierReceive order from downstream customerShip the beer to fill the demand as much as possible, as inventory permitBacklogged orders must be filled in subsequent week, as inventory permitSend an order to your upstream supplier
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中央大學。范錚強 11
Objectives
Minimize total channel costsThe total cost that the four members incurred through the exercise
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中央大學。范錚強 12
Scenarios
1. lead time = 3 weeksOrder delay = 2, transport delay = 1
2. lead time = 1 weeksOrder delay = 1, transport delay = 0
3. lead time = 3 weeksVisibility– weekly POS data, downstream inventory level
4. lead time = 3 weeksKnown average weekly demand and demand pattern
5. lead time = 3 weeks4-week Rolling forecast available, 90% accurate
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中央大學。范錚強 13
Beer Game Site
http://203.68.134.3/~ckfarn/BeerGame/
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中央大學。范錚強 14
Round #2
lead time = 1 weeksOrder delay = 1, transport delay = 0
Change of rolesR WW DD FF R
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中央大學。范錚強 15
Round #3
lead time = 3 weeksOrder delay = 2, transport delay = 1
Visibility– weekly POS data, downstream inventory level Change of roles again
R WW DD FF R
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中央大學。范錚強 16
Round #4
lead time = 3 weeksOrder delay = 2, transport delay = 1
Average demand = 10Winter weeks 1-6; summer weeks 10-18; winter weeks 22-25 Change of roles again
R WW DD FF R
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中央大學。范錚強 17
Round #5
lead time = 3 weeksOrder delay = 2, transport delay = 1
Rolling forecast Change of roles again
R WW DD FF R
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中央大學。范錚強 18
Rolling forecastW# 1 2 3 4 5 6 7 8 9 10 11 12
123456789
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中央大學。范錚強 19
Rolling forecast 2W# 10 11 12 13 14 15 16 17 18 19 20 21101112131414161718
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中央大學。范錚強 20
Rolling forecast 3W# 19 20 21 22 23 24 25 26 27 28 29 3019202122232425
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中央大學。范錚強 21
Case preparation
Case 1: Prepare an analysis of the usage of the concepts you learnt through the Beer Game. a. What went wrong? How can the performance be improved?b. What are the important factors affecting supply chain performance?c. How can IT help in improving supply chain performance?