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Table of Contents Chapter 6.8 (Sensitivity Analysis with Solver Table )

Continuing the Wyndor Case Study Changes in One Objective Function Coefficient Simultaneous Changes in Objective Function Coefficients Single Changes in a Constraint Simultaneous Changes in the Constraints. Table of Contents Chapter 6.8 (Sensitivity Analysis with Solver Table ).

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Table of Contents Chapter 6.8 (Sensitivity Analysis with Solver Table )

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  1. Continuing the Wyndor Case Study Changes in One Objective Function Coefficient Simultaneous Changes in Objective Function Coefficients Single Changes in a Constraint Simultaneous Changes in the Constraints Table of ContentsChapter 6.8 (Sensitivity Analysis with Solver Table)

  2. Wyndor (Before What-If Analysis)

  3. Using the Spreadsheet to do Sensitivity Analysis The profit per door has been revised from $300 to $200.No change occurs in the optimal solution.

  4. Using the Spreadsheet to do Sensitivity Analysis The profit per door has been revised from $300 to $500.No change occurs in the optimal solution.

  5. Using the Spreadsheet to do Sensitivity Analysis The profit per door has been revised from $300 to $1,000.The optimal solution changes.

  6. Using Solver Table to do Sensitivity Analysis

  7. Using Solver Table to do Sensitivity Analysis

  8. Using the Sensitivity Report to Find the Allowable Range Allowable range(Solution stays the same) The solution

  9. Graphical Insight into the Allowable Range The two dashed lines that pass through the solid constraint boundary lines are the objective function lines when PD (the unit profit for doors) is at an endpoint of its allowable range, 0 ≤ PD≤ 750.

  10. Using the Spreadsheet to do Sensitivity Analysis The profit per door has been revised from $300 to $450.The profit per window has been revised from $500 to $400.No change occurs in the optimal solution.

  11. Using the Spreadsheet to do Sensitivity Analysis The profit per door has been revised from $300 to $600.The profit per window has been revised from $500 to $300.The optimal solution changes.

  12. Using Solver Table to do Sensitivity Analysis

  13. Using Solver Table to do Sensitivity Analysis

  14. Using Solver Table to do Sensitivity Analysis

  15. Using the Spreadsheet to do Sensitivity Analysis The hours available in plant 2 have been increased from 12 to 13.The total profit increases by $150 per week.

  16. Using the Spreadsheet to do Sensitivity Analysis The hours available in plant 2 have been further increased from 13 to 18.The total profit increases by $750 per week ($150 per hour added in plant 2).

  17. Using the Spreadsheet to do Sensitivity Analysis The hours available in plant 2 have been further increased from 18 to 20.The total profit does not increase any further.

  18. Using Solver Table to do Sensitivity Analysis

  19. Using the Sensitivity Report Usage of the resource(Left-hand-side of constraint) Allowable range(Shadow price is valid) Increase in objective function value per unit increase in right-hand-side (RHS)∆Z = (shadow price)(∆RHS)

  20. Graphical Interpretation of the Allowable Range

  21. Using the Spreadsheet to do Sensitivity Analysis One available hour in plant 3 has been shifted to plant 2.The total profit increases by $50 per week.

  22. Using Solver Table to do Sensitivity Analysis

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