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A radar chart is a graphical display of the differences between actual performance and ideal performance, used to identify strengths and weaknesses of production.

A data point taken at random from the universe or population of your process.

The difference or interval between the smallest (or lowest) and largest (or highest) values in a frequency distribution.

A term that describes production methods which implement Lean Principles to shorten product throughput time.

A Continuous Improvement philosophy which creates more value and reduces waste, resulting in improved quality, speed, and delivery time, as well as lowered costs. This ongoing continuous improvement involves the entire workforce, from front line workers up through senior management.

See also Kaizen

A Rational Subgroup is a subset of data defined by a specific factor, such as a stratifying factor or a time period. Rational sub grouping identifies and separates Special Cause Variation (variation between subgroups caused by specific, identifiable factors).

Risk Based Inspection

Risk Based Maintenance

Redefining and improving a company's internal processes based on “best practice” standards.

Used to easily identify unnecessary items from those that are necessary. 5S Red Tagged items are placed in a holding area for a set period of time, sorted, and then discarded if they are not used within the allotted time.