Exeter Corporation has recently begun a continuous improvement campaign. As a consequence, there have been many changes in operating procedures. Progress has been slow, particularly in trying to develop new performance measures for the factory.
Management has been gathering the following data over the past four months:
The president has attended conferences at which the importance of throughput time, manufacturing cycle efficiency, and delivery cycle time were stressed, but no one at the company is sure how they are computed. The data to compute these measures have been gathered and appear below:
Wait time per order before start of production, in days
Inspection time per unit, in days
Process time per unit, in days
Queue time per unit, in days
Move time per unit, in days
For each month, compute the following operating performance measures:
Manufacturing cycle efficiency (MCE).
Delivery cycle time.
Using the performance measures given in the problem and those you computed in (1) above, do the following:
Identify areas where the company seems to be improving.
Identify areas where the company seems to be deteriorating or stagnating.
Explain why you think some specific areas are improving while others are not.
Refer to the move time, process time, and so forth, given above for month 4.
Assume that in month 5 the move time, process time, and so forth, are the same as for month 4, except that through the implementation of Lean Production, the company is able to completely eliminate the queue time during production. Compute the new throughput time and MCE.
Assume that in month 6 the move time, process time, and so forth, are the same as for month 4, except that the company is able to...
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