Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed). a. What is the WlP level in the line? b. What is the cycle time as a percentage of To? c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)? i. Increase the WIP level ii. Decrease the variability of one station iii. Decrease the capacity at one station iv. Increase the capacity of all stations
Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed). a. What is the WlP level in the line? b. What is the cycle time as a percentage of To? c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)? i. Increase the WIP level ii. Decrease the variability of one station iii. Decrease the capacity at one station iv. Increase the capacity of all stations
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed).
a. What is the WlP level in the line?
b. What is the cycle time as a percentage of To?
c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)?
i. Increase the WIP level
ii. Decrease the variability of one station
iii. Decrease the capacity at one station
iv. Increase the capacity of all stations
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