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Problem 11-19 Internal Business Process Performance Measures (LO11-3) Tombro Industries is in the process of automating one of its plants and developing a texible manufacturing
Problem 11-19 Internal Business Process Performance Measures (LO11-3) Tombro Industries is in the process of automating one of its plants and developing a texible manufacturing system. The company is finding it necessary to make many changes in operating procedures. Progress has been slow, particularly in trying to develop new performance measures for the factory in an effort to evaluate performance and determine where Improvements can be made, management has gathered the following data relating to activities over the last four months Month 204 182 143 98 65 584946 121 115 98 77 days days days 4 days 20 2031 68 Quality control measures: Number of detects Number of warranty claims Number of customer complaints Material control measures: Purchase order lead time Serap as a percent of total cost Machine performance measures: Machine downtime as a percentage of availability Use as a percentage of availability Setup time (hours) Delivery performance measures : Throughput time Manufacturing cycle efficiency (MCE) Delivery cycle time Percentage of on-time deliveries 58 94 B 68 91 10 68 88 11 103 845 12 958 941 911 888 The president has read in industry Journals that throughput time, MCE, and delivery cycle time are important measures of performance, but no one is sure how they are computed. You have been asked to assist the company, and you have gathered the following data relating to these measures: Average per Month (in days Wait time per order before start of production 9.0 Inspection time per unit 0.9 Process time per unit 2.8 Queue time per unit 3.9 Move time per unit 0.4 10.6 0.8 2.6 5.4 0.6 12.0 0.8 2.4 7.2 0.6 14.0 0.8 1.8 8.6 0.8 Required: La Compute the throughout time for each month I-b. Compute the manufacturing cycle efficiency (MCE) for each month 1-c. Compute the delivery cycle time for each month 3-a. Refer to the inspection time, process time, and so forth, given for month 4. Assume that in month 5 the Inspection time, process time, and so forth are the same as for month 4, except that the company is able to completely eliminate the queue time during production using Lean Production Compute the new throughout time and MCE 3-b. Refer to the inspection time, process time, and so forth, given for month 4. Assume that in month 6 the Inspection time, process time, and so forth are the same as in month 4, except that the company is able to eliminate both the queue time during production and the Inspection time using Lean Production Compute the new throughout time and MCE
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