Chapter 22S part 2 Flashcards
any resource whose capacity is greater than the demand placed on it. it therefore should not be working constantly because it can produce more than is needed
nonbottleneck
one whose utilization is close to capacity and could be a bottleneck if it is not scheduled carefully
capacity constrained resource (CCR)
5 time components
- setup time
- processing time
- queue time
- wait time
- idle time
the time that a part spends waiting for a resource to be set up to work on this same part
setup time
the time that the part is being processed
processing time
the time that a part waits for a resource while the resource is busy with something else
queue time
the time thgat a part waits not for a resource but for another part so that they can be assembled together
wait time
the unused time; that is the cycle time - the sum of the setup time, processing time, queue time, and wait time
idle time
for a bottleneck what time is the greatest
queue time
for nonbottleneck what time is the greatest
wait time
- better tooling
- higher quality labor
- larger batch sizes
- reduction in setup time
ways to save time on a bottleneck
an hour saved at the bottleneck
adds an extra hour to the entire production system
strikes the beat that the rest of the system used to function (the control point that is put on the bottleneck since its the best place for control)
drum
if not the bottleneck, the best place to set the drum is
a capacity constrined resource (CCR)
inventory in front of a bottleneck
buffer/time buffer