| Measurement systems include
variation and error, just like any other
process. When a characteristic is measured
the readings that are recorded include this
measurement error.
It is easy to overlook this and assume
that measurements reflect the true value
of the characteristic. This can result in
fruitless attempts to improve the process
when the apparent variation is caused by
variations in the measuring system. Measurement
Systems Analysis should be an essential
precursor to introducing Statistical
Process Control, or using Design
of Experiments.
Topics that are associated with measurement
systems analysis include:
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