What does the Toyota Production System look like when applied to software?
This probably reduces down to: "what is waste in software dev, and how to we COMPLETELY ERADICATE IT?"
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Marie and Tom Poppendieck's 2002 book, Lean Software Development: An Agile Toolkit contains the original attempt to answer that question.
But I don't think their methods (or Ohno's ideas) have spread very far.
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It's worth asking if TPS may ever be applied to software.
Toyota demands something called 'production levelling'. That means small batch sizes — so they don't overcommit to a production run — but within that run, everything is predictable.
You can't do that in software.
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Counterpoint: the authors of Accelerate (goodreads.com/en/book/show/3) argue that it's possible, but only in the delivery portion of the software dev cycle.
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One of my favorite programming talks, on just that exact topic!
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Recently learn from Steve Tockey, that the biggest waste in software development comes from rework. There's a paper somewhere by him called “How Healthy is your Software Process?”
I find it more illuminating than most of the agile and lean literature on swe out there
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Defect Cost Increase effect is well documented and confirmed by researchers and practitioner.
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