I love reading W. Edwards Deming, as well as books on Kaizan, Lean, and the Toyota Way. When I ran The Menlo Institute we even hosted a Deming night where we would watch old Deming videos and discuss how they applied to the field of software development.
I am less inclined to encourage people to read these subjects today. Not because what what they say is any less relevant, but because people do such a poor job of translating what they say about factory production work into the very different field of knowledge work that is software development.
For example: A core value featured at the opening of Deming’s “Out of the Crisis” is “No Rework.”
It is relatively clear what this means on for the blue collar worker on the factory floor, but it is not clear at all what this means for the knowledge worker.
To see why this is a problem lets apply the philosophy of “no rework” to another area of knowledge work–writing a book. “No rework” could be misapplied to mean don’t send the draft copy of the book to an editor and incorporate their changes, that would be rework, hence it would be waste. Not lean.
Clearly that can’t be right.
It is a flawed understanding of rework applied to writing. Generally when I give this example people get a feel for the problem. For some reason it is not obvious to people when they misapply the idea of “no rework” to writing software.
They are misapplying it, all the time.
I fear the solution may be to warn most people off reading Deming or studying Lean in that they so clearly and so frequently get it wrong. Instead, I will write a series of articles on what is and isn’t rework in software development. Once you understand that, you have my blessing to study Deming.
Tom
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