Variation
Changeability of any characteristic or parameter
that will determine how stable or predictable the process
will be. This can be affected by many items to include the environment,
people, equipment, procedures, measurements, methods, and materials.
Usually associated with six sigma.
Process
improvement can be gained by using a process
map flowchart and process management
techniques.
Use SPC,
(statistical process
control), with X Bar and R
Bar control charts to monitor
variations. Use WECO
rules and Zones
on the control charts to aid in the process improvements.