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 2 ? ? Throughput time (days) Delivery cycle time (days) Manufacturing cycle efficiency (MCE) Percentage of on-time deliveries Total sales (units) ? 75% 70% 67% 64% 2770 2651 2515 2420 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: Move time per unit Process time per unit Wait time per order before start of production Queue time per unit Inspection time per unit Average per Month (in days) 2 3 4 0.8 0.4 0.5 0.5 3.9 3.7 3.5 3.3 16.0 17.5 21.0 22.6 5.0 5 .9 6.9 8 .0 0.4 0.6 0.6 0.4

Please help with requirements above.

Thank you!

Answer 1

days 27.0 Throughput Delivery Cycle manufacturing - Time Time Cycle Efficiency tes Month 1 10.1 days 26.1 days 38.6 | Month 2 10.6 days 2811 days 34.9 % Month 3 11.5 days 32.5 30.4 Month 4 | 1212 days 34.8 days I Calculation: clas throughput time = (Process time & Inspection Time & more Time & oueue time) Throughput Time for month 1 = (3.9 + 0.4 +0.8+5:0) days = 1o.l days Throughput time for month 2 = (3.77 0.6+ 0.4 + s.g) days = 10. 6 days Throughput Time for month 3 = (3.5+ 0.6 +0.5+ 6.9 days - 11.5 days Throughput Time for month 4 = (3.3 +0.4+ 0.5+ 8.0) days = 12.4 days Ib Delivery cycle time = (wait Time & Throughput Time) Delivery Cycle time for month 1 = (16.0 + 10.1) days = 2611 days

Delivery Cycle Delivery Cycle time for month 2 = (17.5+ 10.6) days 28. 1 days time for month 3 =12110 + 11.5) days = 32.5 days time for month 4=(22.6 + 12. 2) days = 34.8 days Delivery Cycle Il manufa Manufacturing Cycle Efficiency = process time x Throughput time Mce for month 1 = (3.9 + 10.1) days x 100 = 38.6% for month 2 = (317 + 10.6) days x MCE MCE 100 2) 34.9% for month 3 = (3.5+ 11.5) days x 100 = 30.4% for month 4 = (313 + 1212) days x 100 = 27.0% Mce (3) Month 5 Month 6 Throughput Time Manufacturing Cycle Efficiency days. 4.2 70.6 days 3.8 % | 86:8 %

Calculation: (Bas New Throughput Time for month 5= (Process time t. Inspection time & move time) = (3.3+0.4+ 0.5) days = 4.2 days New Mce for month 5= (Process time - Throughput time) x100 = (313 & 4.2) days 4100 = 78.6% (3b) New Throughout time for month 6 = (Process time & Move time) = (3.3 +0.5) days = 3.8 days New McE for month 6 = (Process time & Throughput Time) x100 = (3.3 + 3.8) days x 100 = 86.8%