PART
IV.
Flexibility
The
flexibility measurements assess both the workforce and the manufacturing process. Improved flexibility
is often a result of reductions
made in cost-added activities.
1. Percent reduction in cycle time
The
reduction in cycle time is measured by product line. The measurement is the ratio calculated by dividing actual cycle
time by the theoretical cycle time. Actual cycle time is
normally based on average work in process throughput time.
Theoretical cycle time is based on value add time for a
lot size of one. It contains no inspection, setup or queue time.
Both work in process and administrative cycle times should be
measured. Measure monthly and display trend.
2. Percent reduction in setup time
Reduction
in setup or changeover of the equipment or production
line is an important measure of
continuous improvement and
flexibility. The measure can be daily, weekly
or monthly, depending on the current frequency of changeover.
Measure by machine and display on a trend line.
3. Percent reduction in lot/batch size
The
measurement of lot/batch size reduction measures the trend in reduction of lot sizes. It is measured monthly as average lot size by production process.
4. Percent
increase in
number of jobs
mastered per employee
The
purpose of increasing the number of jobs mastered per employee is not only for improvement of flexibility,
but to help
facilitate the habit of improvement. This is accomplished
by continuously providing a "different set of eyes" engaged
in the process. Most companies involve other hourly workers in the development of qualifications for certification
and deciding whether someone is to be certified.
Display in the work area, showing the number of jobs each
individual has mastered.
5. Percent increase in common materials used per product
This
measurement would be taken at the time of design release
and is total common materials divided by total materials
by product. Measure relative to goals set for standardization
at the time design was initiated.
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