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Pareto Chart

Pareto charts may be used to visualize the distribution of Defects across various facets, like Traceability, Parts, or Processes. This chart is named after the Pareto Principle.

Pareto Chart

Settings

Setting Description
Label The title to display on the chart.
Script ID Identifies how this chart is referenced in Dashboard Scripts.
Split By Controls how the data is split into multiple charts. One chart will be drawn for each unique grouping.
Group By Controls how the data is grouped on each chart. Each separate group will be drawn as a separate bar on the same chart.
Pareto Bar Method Controls the method used to display the bars and cumulative line. See Bar Methods for more information.

Bar Methods

Method Bar Description Cumulative Line
Cost, Percent of Defect Cost The total cost of Defects. The percentage that each bar contributes to the sum of Defect costs across all defective records in the data set.
Cost, Percent of Total Cost The total cost of Defects. The percentage that each bar contributes to the sum of Defect costs across all records in the data set, assuming that each unit was an NCU.
Count, Percent of Defects The count of Defects. The percentage that each bar contributes to the total number of Defects.
Count, Percent of Sample Size The count of Defects. The percentage that each bar represents out of the total Sample Size.
PPM The number of non-conforming units per million units produced. None
DPM The number of Defects per million units produced. None
Cost Per Unit The average cost to produce one unit. None
Sigma The Defect Sigma for this group, based on the DPM. None

Drilldown

Additional analysis may be performed by clicking on a bar, then selecting a another category to drill into. This will visualize the Defects within that bar, grouped by a chosen Traceability, Part, Process, Location, or Test Label.

An image showing the drilldown dropdown which appears when clicking on a single bar.

An image showing the pareto chart drilled into the Dent defect by Line.

This process may be repeated as many times as desired to determine the largest source of Defects.

The drilldown is not saved with the chart, and will need to be repeated each time the Dashboard is loaded.

The drilldown may be exited by using the select box in the bottom of the Pareto chart.

An image showing the pareto chart drilled into the Dent defect by Line, with the breadcrumb to exit the drilldown highlighted.

Customization

Pareto charts may be customized in various ways with scripting. Some common customizations of Pareto charts include:

  • Changing the bar colors.
  • Modifying the cumulative line.
  • Adding comparison bars.

Customizing a Pareto Chart will disable the ability to drill into it.

An image with a pareto chart that has custom colors.

Download

Charts may be saved as an image for offline use by clicking the Download button. If multiple charts have been drawn, they may be downloaded individually using the dropdown menu.

Download Button

Insights

Pareto Insights may be used to reduce the manual work required to determine the cause of Defects. See Using Insights for more information.

Insights Button

See Also