Supply Chain Homework No 4 (002703664)

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Feb 20, 2024

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Supply Chain Homework No-4 Aditya Kaspate (002703664) Q1
5. Ans:- The updated forecast for May, which now requires meeting a demand of 500 units, will influence the aggregate planning model in several ways: •Increased production: - To meet the increased May demand, the company may need to modify production levels (Rt, Qt, Ct) in previous months, affecting their strategy. •Inventory management: - Higher May demand may require adjustments in inventory levels (It) and carrying costs in prior months to avoid stockouts. •Overtime and subcontracting costs: - Increased demand may lead to higher overtime and subcontracting costs, affecting the objective function's total costs. •Capacity Constraints: - The higher May demand might push the company's capacity limits, potentially forcing reliance on overtime labor or subcontracting. The model must be re-optimized to determine optimal production, inventory, and workforce utilization, ensuring minimized costs and met demand in May. Q2. 1, 2, 3, and 4. Excel sheet has been attached with all the calculations. 5. Ans: - A consultant suggested reducing the batch size to ten units. According to the provided demand data, reducing the batch size to 10 units will result in stockouts because the demand for each period exceeds 10 units. To recommend reducing batch size, we must outsource the remaining demand.
Q3. A, B, C, D. Excel sheet has been attached with all the calculations. Rule Mean Flowtime Mean Lateness Mean Tardiness Maximum Tardiness SPT 21.00 0.71 2.14 8.00 EDD 21.00 0.71 2.14 8.00 CR 28.71 8.43 10.00 47.00 Moore's Algorithm 22.71 2.43 4.86 34.00 E. The values for shortest processing time and earliest due time are the same because the sequence for shortest processing time and earliest due time is the same. The rules with the best times in all categories are SPT/EDT . The Critical Ratio rule and SPT/EDT have the same maximum tardiness time. Moore's Algorithm reduced the number of tardy jobs, but the final job has a high tardiness value.
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