Tools
7MP Management and Planning Tools
8QC Traditional Quality Control Tools
Failure Mode, Effects, and Criticality Analysis
Maintainability and Availability
Process Decision Program Charts
Bullseye Chart Calculations
An example Bullseye chart from our SPC software is shown above.
Plotted Point:
The paired x,y values of each observation
Crosshairs Vertical Line:
The target x-value
Crosshairs Horizontal Line:
The target y-value
Radius of Inner (Green) Circle on Crosshair Horizontal Line:
Target x-value ± 2 * Sample Sigma of x-values
Radius of Inner (Green) Circle on Crosshair Vertical Line:
Target y-value ± 2 * Sample Sigma of y-values
Radius of Outer (Yellow) Circle on Crosshair Horizontal Line:
Target x-value ± 3 * Sample Sigma of x-values
Radius of Outer (Yellow) Circle on Crosshair Vertical Line:
Target y-value ± 3 * Sample Sigma of y-values
See also:
Learn more about the Quality Improvement principles and tools for process excellence in Six Sigma Demystified (2011, McGraw-Hill) by Paul Keller, or his online Green Belt certification course ($499).
