DataSpan, Inc., automated its plant at the start of the current year and install
ID: 2405646 • Letter: D
Question
DataSpan, Inc., automated its plant at the start of the current year and installed a flexible manufacturing system. The company is also evaluating its suppliers and moving toward Lean Production. Many adjustment problems have been encountered, including problems relating to performance measurement. After much study, the company has decided to use the performance measures below, and it has gathered data relating to these measures for the first four months of operations Month Throughput time (days) Delivery cycle time (days) Manufacturing cycle efficiency (MCE) Percentage of on-time deliveries Total sales (units) 90% 2410 2307 21892106 84% 81% 78% Management has asked for your help in computing throughput time, delivery cycle time, and MCE. The following average times have been logged over the last four months Average per Month (in days Move time per unit Process time per unit Wait time per order before start of production Queue time per unit Inspection time per unit 0.6 3.0 19.723.024.8 0.6 3.2 18.0 5.5 0.6 0.8 0.6 Required: 1-a. Compute the throughput time for each month. 1-b. Compute the delivery cycle time for each month 1-c. Compute the manufacturing cycle efficiency (MCE) for each month. 2. Evaluate the company's performance over the last four months 3-a. Refer to the move time, process time, and so forth, given for month 4. Assume that in month 5 the move time, process time, and so forth, are the same as in month 4, except that through the use of Lean Production the company is able to completely eliminate the queue time during production. Compute the new throughput time and MCEExplanation / Answer
1(a) Computation of Total Through Put Time Month 1 2 3 4 Through Put Time ( in Days) Process Time 3.6 3.4 3.2 3 Inspection Time 0.6 0.8 0.8 0.6 Move Time 0.9 0.5 0.6 0.6 Queue Time 4.7 5.5 6.4 7.4 Total ThroughPut Time 9.8 10.2 11 11.6 Computation of MCE Month 1 2 3 4 Process Time (in Days) 3.6 3.4 3.2 3 Total ThroughPut Time (in Days) 9.8 10.2 11 11.6 MCE= Process Time /Through Put Time 37% 33% 29% 26% Computation of Delivery Cycle Time Month 1 2 3 4 Wait time from Order to Start of Prduction ( in Days) 18 19.7 23 24.8 Total ThroughPut Time ( in Days) 9.8 10.2 11 11.6 Total Delivery Cycle (in Days) 27.8 29.9 34 36.4 2. All of the Performance measures Show Unfavourable Trends. i.e. Throughput time per Unit is increasing , Manufactueing Cycle efficiency is declining and delivery cycle time is increasing 3(a) and (b) Month 5 6 Process Time in Days 3 3 Inspection Time in Days 0.6 0 Move Time in Days 0.6 0.6 Queue Time in Days 0 0 Total ThroughPut Time in Days 4.2 3.6 MCE= Process Time /Through Put Time 71% 83%
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