Inspection for quality of product is performed mostly at the end of
the production line. Therefore, non‐conformance is known at the time it
is inspected. One solution is applying in or between process inspection.
Moreover, in or between processes the required correction can be
performed before parts are manufactured by the subsequent process.
Compares two sequences of in‐process inspection and correction
facilities. The first is where the correction is made concurrently with
the process (reworking). The second involves establishment of a separate
correction facility and therefore correction is performed separately
(correcting). Uses process, inspection and correction costs as an
economical measurement of accepted product for both sequences. On the
other hand, an accepted product is not always perfectly on its target
value, which will eventually result in loss to the customer. Uses a
model of the sum of these costs and loss to determine the best sequence.