Hi folks, sorry I've been quiet, but I was being trained (for the first time in 15 years or so).
Trained to be an Executive Black Belt no less.
So I am gonna get on everyone's nerves by sharing my learning.
In every process there is variation. Some of it is normal and caused by regular factors (common causes) such as seasonality. Extreme outliers (and some other signs) point to "special causes", like a hurricane. Ideally both types should be reduced to create the smoothest process possible. Special causes, of course, require special attention and investigation.
If we however confuse the two causes and treat common causes like special ones, we are over-reacting, which is known as "tampering".
Read tomorrows log for a real life example...
Good night y'all.
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