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Background documentationiSPCChart Locate this document in the navigation structure

 

Processes and displays data sets with thousands of observations per tag in a variety of statistical process control (SPC) chart formats. Each SPC chart includes the following:

  • A set of summary statistics appropriate for the analysis type

  • Raw data views and full statistical calculation result views

  • SPC rule violations with drill-down capability on a point-by-point basis

  • Additional attribute information for each point

  • Collaborative point documentation capabilities

 

You can display screens that show different views of the data while you interact with the SPC chart and other views in the application. When you select points on the SPC chart, the screens are updated to show information specific to those points. If additional characteristics are returned by the data query, you can display them for each point to add context to the view.

You can suppress, or exclude, points from the calculations. You can also enter comments about data points and store the comments in a database. The system suppresses points and stores comments based on the SPC chart type and the unique data point identifier. The unique point identifiers must be present in the query template used to populate the chart.