Statistical Process Control
involves using statistical methods to monitor
processes. Statistical Process Control may
be applied to production processes or business/transactional
processes.
All processes are subject to variation.
Statistical Process Control uses statistical
methods to:
 ensure that the process is stable. This
often involves confirming that the process
output characteristics conform to a normal
distribution with parameters
that are constant over time.
 using statistical methods to monitor
the processes for timely identification
of 'special causes' that indicate a change
in the statistical parameters
The main tools of SPC include control
charts and Process
Capability Studies.
