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19th April 2006, 12:22 PM
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PDCA (Walter Shewhart Cycle - Check) or PDSA (Deming - Study) cycle?
My instructor would like me to clarify: is it the PDCA or PDSA cycle? He thinks Deming changed it to PDSA and is wanting to clarify that.
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19th April 2006, 12:37 PM
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Quote:
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Originally Posted by Steve90755
My instructor would like me to clarify: is it the PDCA or PDSA cycle? He thinks Deming changed it to PDSA and is wanting to clarify that.
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PD CA originated with Walter Shewhart, and Deming referred to it as the "Shewhart Cycle." Deming later changed the "C" to "S."
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19th April 2006, 12:39 PM
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He did.
He changed it because Study implies understanding the sources of variation in the process.
The Act portion is somewhat more controversial, if a four word concept can be controversial. Act should probably mean improvement if the PDCA cycle is used for process improvement, and something like make the changes permanent if the PDCA cycle is used more generally. Or something.
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19th April 2006, 12:42 PM
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Quote:
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Originally Posted by atetsade
He did.
He changed it because Study implies understanding the sources of variation in the process.
The Act portion is somewhat more controversial, if a four word concept can be controversial. Act should probably mean improvement if the PDCA cycle is used for process improvement, and something like make the changes permanent if the PDCA cycle is used more generally. Or something.
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I've always thought that "decide" is better than "act," because what comes after checking/studying should be a decision to either act or leave well enough alone.
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19th April 2006, 12:54 PM
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Shewhart- PDCA
Deming- PDSA
Wynne- PDSD
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19th April 2006, 01:34 PM
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Quote:
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Originally Posted by atetsade
Shewhart- PDCA
Deming- PDSA
Wynne- PDSD
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LOL - good one. 
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19th April 2006, 02:46 PM
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Quote:
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Originally Posted by atetsade
Shewhart- PDCA
Deming- PDSA
Wynne- PDSD
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Yeah! PDSD, I like this, and have experienced that in some cases it is better to decide to do nothing rather than use "process molestation" just for the sake of doing something. Leave it alone and quit adjusting for every variation.
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19th April 2006, 02:47 PM
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Memory loss temporary or permanent
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