A Run Chart is the most basic tool used to display how a process performs over time.
It is a line graph of data points plotted in chronological order—that is, the sequence in which process events occurred.
These data points represent measurements, counts, or percentages of process output.
Run Charts are used to assess and achieve process stability by highlighting signals of special causes of variation
Using Run Charts can help you determine whether your process is stable (free of special causes), consistent, and predictable.
Unlike other tools, such as Pareto Charts or Histograms, Run Charts display data in the sequence in which they occurred.
This enables you to visualize how your process is performing and helps you to detect signals of special causes of variation.
Run Chart is made up of seven parts:
www.balancedscorecard.org