Read The Westridge Cabinets Case And Then Answer The Following Questions See Also The Westridge Cabinets Exhibits Sprea 1 (143.23 KiB) Viewed 19 times
Read the Westridge Cabinets case and then answer the following questions. See also the Westridge Cabinets Exhibits spreadsheet with Exhibits 2, 5, and 6. A. [10 pts] Capacity Analysis: i. What is the current percentage product mix for each of the six major product families: Spray stain, spray stain/glaze, wipe stain, wipe stain/glaze, Thermofoil, Melamine? ii. How much time does the average box require at each of the steps show in Exhibit 1, i.e., what is the unit load in minutes for the average box? (Hint: If only 55% of the boxes use a step, the unit load is only 55% of the process time at that step.) iii. What is the capacity of each of the process steps in boxes for an 8-hour shift? (Assume each staff member works on one box at a time at a processing step, and each box is worked on by only one staff member at a processing step) iv. What is the bottleneck under the current product mix? What is the bottleneck capacity in average boxes per day? For each of the six major products what is the bottleneck and its capacity, i.e., which step is the throughput restricting step for that product? v. What is the implied utilization of each step assuming 250 boxes are put into production each day? (Implied utilization = 250 boxes/Capacity) B. [10 pts] Flow Time Analysis: i. What is the average cumulative waiting time for each of the products in the production system? (Hint: What is the backlog for each of the production steps?) ii. Under the current scheduling policy, how long would it take to get each box through the production process if there were no backlogs? iii. What is the total throughput time for each of the product families, i.e., how long does the average box spend in production under current scheduling policy? iv. Compare the average total throughput time for a box to the work-in-progress inventory. v. Compare the total throughput time to the minimum possible production time for each product if there were no delays.
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