“All models are wrong, some are useful.”

Workplace Performance

Image of George P Box

The statistician George Box (1976) coined the phrase “All models are wrong, but some are useful.” I have used this quote many times… in workshops, as content in lessons for clients on modeling and simulation and at cocktail hour. Okay not at cocktail hour!!

If you are one of the seven avid followers of this blog, you have seen the continual efforts to make the Performance Improvement Process Model, (PIPM) now in it’s tenth iteration, useful. Every time I post an update or use it in an article, I get more feedback that moves me and the model closer to that goal.

Recently I received a comment from my friend and colleague Dr. Jim Hill, the CEO of Organizational Performance Systems, regarding the PIPM on LinkedIn. Jim reminded me that part of the value consultants bring to their clients is the adaptation of “our” models (there…

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