DataSpan, Inc., automated its plant at the start of the current year and install
ID: 2470616 • 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
Months: 1 2 3 4
Throughput time (days): ? ? ? ?
Delivery cycle time (days ): ? ? ? ?
Manufacturing cycle efficiency (MCE): ? ? ? ?
Percentage of on-time deliveries 78% 79% 84% 91%
Total sales (units) 10,430 10,480 10,580 10,510
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)
Wait time per order before start
of production
Compute the throughput time for each month. (Round your answers to 1 decimal place.)
Througout time
Month 1 ______ days
Month 2 ______ days
Month 3 ______ days
Month 4 ______ days
Compute the manufacturing cycle efficiency (MCE) for each month. (Round your answers to 1 decimal place (i.e., 0.123 should be entered as 12.3).)
Manufacturing Cycle efficiency (MCE)
Month 1 ______ %
Month 2 ______ %
Month 3 ______ %
Month 4 ______ %
Compute the delivery cycle time for each month. (Round your answers to 1 decimal place.)
Delivery cycle time
Month 1 ______ days
Month 2 ______ days
Month 3 ______ days
Month 4 ______ days
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 MCE. (Round your Throughput Time to 1 decimal place. Round your MCE percentage answer to 1 decimal place (i.e., 0.123 should be entered as 12.3).)
Month 5
Thoughout time: _____ days
Manufacturing cycle efficiency (MCE): ______ %
Refer to the move time, process time, and so forth, given for month 4. Assume in month 6 that the move time, process time, and so forth, are again the same as in month 4, except that the company is able to completely eliminate both the queue time during production and the inspection time. Compute the new throughput time and MCE. (Round your Throughput Time to 1 decimal place. Round your MCE percentage answer to 1 decimal place (i.e., 0.123 should be entered as 12.3).)
Month 6
Thoughout time: _____ days
Manufacturing Cycle efficiency (MCE): ______ %
Average per Month (in days)
1 2 3 4 Move time per unit 0.4 0.7 0.8 0.8 Process time per unit 0.3 0.6 0.6 0.8 Wait time per order before start
of production
8.0 5.0 4.0 Queue time per unit 3.8 3.9 2.8 1.5 Inspection time per unit 0.3 0.6 0.4 0.7
Explanation / Answer
All answers are given in this table Average per Month (in days) Ans 1 a,b,c Ans 3 a Ans 3B Months 1 2 3 4 5 6 Move time per unit A 0.4 0.7 0.8 0.8 0.8 0.8 Process time per unit B 0.3 0.6 0.6 0.8 0.8 0.8 Wait time per order before start C 9.3 8 5 4 4 4 Queue time per unit D 3.8 3.9 2.8 1.5 0 0 Inspection time per unit E 0.3 0.6 0.4 0.7 0.7 0 Through Put Time T= A+B+D+E 4.8 5.8 4.6 3.8 2.3 1.6 days Manufacturing Cycle Time B/T*100 6.3 10.3 13.0 21.1 34.8 50.0 % Delivery Cycle Time C+T 14.1 13.8 9.6 7.8 6.3 5.6 days Throughput Time= Process Time+Inspection Time+Move Time+Queue Time Manufacturing Cycle Efficiency=Value added time(Process Time)/Throughput Time Delivery Cycle Time=Wait Time+Throughput time
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