A positive aspect of Shewhart charts is using control chart limits to avoid tampering with a process in a state of control. Includes a discussion of the rationale for using three as the multiplier of the standard deviation when setting control chart limits.
A positive aspect of Shewhart charts: a plot of the data. Includes a general discussion of the Hawthorne Effect.
Sliding door moments that led to a career in applied statistics
Overview of topics related to Shewhart control charts
Description of forthcoming recordings addressing topics in "On Some Positive and Negative Aspects of Shewhart Charts" MS thesis from 1997.