ChIV-AggregatePlanning_I-Sp10

8000 8000 shortage of 1500 in p3 8500 4500 increase

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Unformatted text preview: 0 1500 2000 4 What’s wrong? 8000 8000 Shortage of 1500 in P3. 8500 4500 Increase production by 6000 6000 500 in P1, P2 and P3. 6000 6000 3 1000 1000 -1500 0 What’s wrong? 6500 6000 We have inventory in P4. 0 1500 Generally, we want zero inventory at the end of 6500 6500 6500 4500 planning horizon. 1500 2000 0 0 Reduce P4 by 1500. You could do these two adjustments in one step. 9 1200 4500 4800 4300 800 0 0 0 0 3400 4000 4000 4000 800 800 2200 1700 900 600 3400 4000 4000 4000 800 2200 1700 900 600 800 on hand at the start of planning horizon. What’s wrong with the basic plan? Capacity exceeded in Feb., Mar. and Apr. Incorrect inventory: Apr. Adjustment 1: Move 500 + 800 + 300 to Jan. + Add 600 to Jan. What’s wrong with the adjusted plan? 600 left after June. Reduce 600 in May ChIV‐AggregatePlanning‐Sp10 10 ChIV‐AggregatePlanning‐Sp10 MGMT 36100 MGMT 36100 Ex 4. Level Period Period Constraints: No shortages. Capacity 4000. Must have at least 600 units at the end of April. Average = (2000+4500+4800+4300+2900+2700 – 800)/6 = 3400 800)/6 Jan. Feb. March 2000 4500 800 3400 2200 3850 2650 3400 1100 3850 2000 4800 April 4300 May 2900 3400 -700 3400 1100 June 2700 3400 0 3400 1800 Requirement Basic Plan Inventory Adjusted plan Inventory 800 3400 3400 -300 -1200 3850 3850 1050 600 Final Plan 3850 3850 3850 3850 2500 2500 Inventory 800 2650 2000 1050 600 200 0 What’s wrong with the basic plan? Negative inventory: Mar., Apr. and May & incorrect inventory for April We will start with correction for April. Action: Add 1800 units in the first 4 moths (450) each. What’s wrong with the adjusted plan? 1800 left after June. Reduce 900 each from the last two months. ChIV‐AggregatePlanning‐Sp10 11 MGMT 36100 ChIV-AggregatePlanning-Sp10 2...
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