Wish you could login to start your training RIGHT
NOW but you don't have an account?
No problem. You get instant access to training
courses when you purchase them through our on-line store.
What are Control Charts?
Control charts give a statistical signal that a process has gone
out-of-control so the operator can make the necessary adjustments to
bring the process back into control.
The chart itself can’t
control the process. The control chart provides a signal so the
operator can take action on the process.
A process that is stable
is in-control. If the process changes, we get a signal from the
control chart that it has gone out-of-control.
Adjusting a process
when it is not statistically out-of-control is considered
over-adjustment and results in increased process variation.
Control charts can be used to measure product characteristics or
in-process parameters.
Measuring an in-process parameter is the
best way to monitor a process because it may provide a signal that
the process is going out-of-control before bad product is made.
