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OM&PM/Class 3a1 1Operations Strategy 2Process Analysis –Class 2a + 2b: Process Flow Analysis –Class 3a: Capacity Investment »The Product Mix problem »National.

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Presentation on theme: "OM&PM/Class 3a1 1Operations Strategy 2Process Analysis –Class 2a + 2b: Process Flow Analysis –Class 3a: Capacity Investment »The Product Mix problem »National."— Presentation transcript:

1 OM&PM/Class 3a1 1Operations Strategy 2Process Analysis –Class 2a + 2b: Process Flow Analysis –Class 3a: Capacity Investment »The Product Mix problem »National Cranberry Coop. 3Lean Operations 4Supply Chain Management 5Capacity Management in Services 6Total Quality Management 7Business Process Reengineering Operations Management & Performance Modeling

2 OM&PM/Class 3a2 Product Mix Decisions: Kristen Cookies offers 2 products Sale Price of Chocolate Chip Cookies:$5.00/dozen Cost of Materials:$2.50/dozen Sale Price of Oatmeal Raisin Cookies:$5.50/dozen Cost of Materials:$2.40/dozen Maximum weekly demand of Chocolate Chip Cookies:100 dozen Maximum weekly demand of Oatmeal Raisin Cookies:50 dozen Total weekly operating expense$270

3 OM&PM/Class 3a3 Product Mix Decisions Total time available in week:20 hrs

4 OM&PM/Class 3a4 Product Mix Decisions Margin per dozen Chocolate Chip cookies = $2.50 Margin per dozen Oatmeal Raisin cookies = $3.10 Margin per oven minute from Chocolate Chip cookies = $2.50 / 10 = $ 0.250 Margin per oven minute from Oatmeal Raisin cookies = $3.10 / 15 = $ 0.207

5 OM&PM/Class 3a5 LP for Optimal Product Mix Selection xcc:Dozens of chocolate chip cookies sold. xor:Dozens of oatmeal raisin cookies sold. Max 2.5 xcc + 3.1 xor subject to 8 xcc+ 5 xor<1200 10 xcc +15 xor<1200 4 xcc+ 4 xor<1200 xcc< 100 xor< 50 Technology Constraints Market Constraints

6 OM&PM/Class 3a6 National Cranberry Cooperative

7 OM&PM/Class 3a7 National Cranberry Cooperative Truck arrivals x bbls/hr

8 OM&PM/Class 3a8 Class 3a Learning Objectives u Effect of product mix decisions on process capacity –marginal contribution per unit of bottleneck capacity used u Process flow charts with multiple products u Backups may not occur in front of a bottleneck u Bottleneck may shift on adding capacity è diminishing returns to capacity investment


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