As a readers of this blog would know, I am a great admirer of the Toyota's quality process. I believe that the processes are applicable to software development and renovation.
What puzzled me for a long time was this: How can Just In Time (JIT) apply to software? Software production does not depend upon inventory. To make the second copy of a software product does not require another set of parts to be procured.
Then one day I was talking to my son Vijay, who is a supply chain guy, about Just In Time. He said, "Daddy, Just In Time is about showing up problems in the process".
That was it. I had been looking at the mechanism, not the purpose it was meant to serve.
A software process that exposes defects early is a JIT process.
Which of course begs the question: What is it that keeps defects hidden?
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