Provides a graphical means to assess and communicate how changes to process inputs affect the process output, either statically or dynamically. The type of graph you select dictates the type of data display. Some graphs better display the distribution of the data; some better display changes to the mean or variation; some better display the data over time (dynamically) to highlight patterns.
|When to Use||Purpose|
|Start of project||Assist in project selection by identifying process outputs that exhibit shifts, changes in variation, or changes in time-based patterns as a result of changes to one or more process inputs.|
|Mid-project||Investigate effects of input variables on the process output over time.|
|End of project||Graphically compare the pre-project process dynamic behavior to the post-improvement dynamic behavior.|
One numeric variable (continuous or discrete) with optional categorical variables.