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You may be familiar with the 80-20 Rule. Arthur’s 4-50 Rule takes it farther. Here’s the flip side of the 4-50 rule.
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“Hi, I’m Jay Arthur, author of “Lean Six Sigma Demystified” and QI Macros [software].
“If you know anything about me, I always preach Arthur’s 4-50 rule: That 4% of what you’re doing is producing over 50% of the mistakes, errors, waste, rework, and whatever. But let’s look at the flip side of the 4-50 rule, which is 50% of what you’re doing is only producing 4% of the benefit.
Continue Reading "The Flip Side of Arthur’s 4-50 Rule"
Posted by Jay Arthur in Improvement Insights.
Juran borrowed the work of Vilfredo Pareto to describe the uneven distribution of defects. Vilfredo focused on wealth. Juran expanded it to defects. And I narrowed and expanded it to include almost anything. Here’s what it means to you:
“Hi, I’m Jay Arthur, author of “Lean Six Sigma For Hospitals” and the QI Macros [software].
“I was rereading Juran, and he was talking about how he misnamed the Pareto Principle but then it stuck. When he was in his mid-20s, as a young engineer he observed that quality defects are unequal in frequency. They seemed to just be in specific places, and so on.
Continue Reading "Juran and the Pareto Principle"
Posted by Jay Arthur in Improvement Insights.
You don’t have to fix everything, just the one thing out of 25 that causes over half the waste, rework and lost profit.
“Hi, I’m Jay Arthur, author of “Lean Six Sigma Demystified” and QI Macros [software].
“I’ve talked to you about Pareto’s rule before, but I continue to come back to this time and time again: 20% of what you’re doing is producing 80% of the waste, rework, lost profit, [lost] productivity, patient harm… whatever it is. But within that 20% that Pareto rule still applies, which means that only 4% of what you’re doing is producing over half the mistakes and errors.
Continue Reading "Drill Down to the 4-50 Rule to Get Results"
Posted by Jay Arthur in Agile Lean Six Sigma, Data Mining, Improvement Insights, QI Macros.
