Steve90755
19th April 2006, 12:22 PM
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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View Full Version : PDCA (Walter Shewhart Cycle - Check) or PDSA (Deming - Study) cycle? Jim Wynne 19th April 2006, 12:37 PM 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. PDCA originated with Walter Shewhart, and Deming referred to it as the "Shewhart Cycle." Deming later changed the "C" to "S." apestate 19th April 2006, 12:39 PM 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. Jim Wynne 19th April 2006, 12:42 PM 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. 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. apestate 19th April 2006, 12:54 PM Shewhart- PDCA Deming- PDSA Wynne- PDSD Cari Spears 19th April 2006, 01:34 PM Shewhart- PDCA Deming- PDSA Wynne- PDSD LOL - good one.:lol: ralphsulser 19th April 2006, 02:46 PM Shewhart- PDCA Deming- PDSA Wynne- PDSD 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. Howard Atkins 19th April 2006, 02:47 PM Why did you ask this when you got the answer 2 weeks ago:bonk: :bonk: "Dr. Deming’s PDCA cycle is applicable to any process" advice/suggestions? (http://elsmar.com/Forums/showthread.php?t=16029) |
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