OTM 300 Exam 1 Review questions correctly
answered to pass
1. Capacity Capacity - unit/time
Perfor- mance
metric
2. Quality metric - External measures: customer satisfaction, features, reliability
-Internal measures - defect rate/yeild rate
3. Efficiency metrics - Productivity = output/inputs
-Utilization = input used/input available or output/potential output
4. Flexibility Metric - able to produce a variety of products
-able to quickly switch from one product to another
5. Flow time Processing time + waiting time = the time of all stations
6. Little's Law I=RxT
-Hold in the long run for a stable process even when there are
short term fluctuations in thruput and inventory
7. Stable process - long run average inflow (production) rate is the same as long run
average outflow (demand) rate
8. Increasing capac- Increase scheduled availability
ity -increase scale/# of resources
-work longer
-do it right the 1st
time Increase net
availability
-Reduce availability loss
-Reduce setup times
9. Level production - producing small quantities frequently to match with customer
demand
1/
18
,OTM 300 Exam 1 Review questions correctly
answered to pass
-in order to do this, set up time must be minimized
10. Cycle long expensive set up --> larger production lots --> excessive inventory
length level
analysis
2/
18
, OTM 300 Exam 1 Review questions correctly
answered to pass
11. Benefit of -Production better matches demand --> less inventory required
level -More even workload on production process
production -more even workload on suppliers of components
-queue and wait increases as utilization increases (e.g. when the
12. 2 key drivers employee is too consumed, they may be exhausted)
of queue -queue and wait increases as variation increases
length
-Prevention, rather than detection
13. Process -more timely feedback
capabili- ty -inspection is non-value-adding activity, and cost time and
money BTL: control process parameter and product will
14. Statistical
take care of itself
process
control -equipment - tool, machine vibration
-material - moisture content
-environment - temperature, light
-operator - human error, lack of understanding
15. Possible
sources of
"special cause"
variation
16. Types of
control chart
3/
18
answered to pass
1. Capacity Capacity - unit/time
Perfor- mance
metric
2. Quality metric - External measures: customer satisfaction, features, reliability
-Internal measures - defect rate/yeild rate
3. Efficiency metrics - Productivity = output/inputs
-Utilization = input used/input available or output/potential output
4. Flexibility Metric - able to produce a variety of products
-able to quickly switch from one product to another
5. Flow time Processing time + waiting time = the time of all stations
6. Little's Law I=RxT
-Hold in the long run for a stable process even when there are
short term fluctuations in thruput and inventory
7. Stable process - long run average inflow (production) rate is the same as long run
average outflow (demand) rate
8. Increasing capac- Increase scheduled availability
ity -increase scale/# of resources
-work longer
-do it right the 1st
time Increase net
availability
-Reduce availability loss
-Reduce setup times
9. Level production - producing small quantities frequently to match with customer
demand
1/
18
,OTM 300 Exam 1 Review questions correctly
answered to pass
-in order to do this, set up time must be minimized
10. Cycle long expensive set up --> larger production lots --> excessive inventory
length level
analysis
2/
18
, OTM 300 Exam 1 Review questions correctly
answered to pass
11. Benefit of -Production better matches demand --> less inventory required
level -More even workload on production process
production -more even workload on suppliers of components
-queue and wait increases as utilization increases (e.g. when the
12. 2 key drivers employee is too consumed, they may be exhausted)
of queue -queue and wait increases as variation increases
length
-Prevention, rather than detection
13. Process -more timely feedback
capabili- ty -inspection is non-value-adding activity, and cost time and
money BTL: control process parameter and product will
14. Statistical
take care of itself
process
control -equipment - tool, machine vibration
-material - moisture content
-environment - temperature, light
-operator - human error, lack of understanding
15. Possible
sources of
"special cause"
variation
16. Types of
control chart
3/
18
