is the use of control charts to track and
eliminate variables in repetitive manufacturing processes, in order to
ensure that the product is of consistent and predictable quality. If a chart
reveals only chance variations that are inherent in the system, the process
is said to be in a state of "statistical control". If the chart reveals
variations traceable to changes in equipment, procedures or workers, the
process is said to be "out of control". Statistical process control differs
from statistical quality control in that the former
monitors manufacturing process parameters and the latter monitors product
quality parameters.
Application
Notes:
