Ses. 3-6: Six Sigma Basics

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MIT 16.660J Introduction to Lean Six Sigma Methods, IAP 2012
View the complete course: ocw.mit.edu/16-660JIAP12
Instructor: Earll Murman
This session introduces six sigma, a valuable approach for improving process quality. It includes an active learning exercise in which students learn how to interpret a basic statistical process control chart.
License: Creative Commons BY-NC-SA
More information at ocw.mit.edu/terms
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Пікірлер: 11

@ghgh2098 4 жыл бұрын

lecture is very important ... information and concepts are very important .... Thank you very mach for your efforts, Mr. Earll Murman and thanks to everyone who contributed to present this lecture

@alfonsoyfreddy2010 9 жыл бұрын

Great lecture, thank you Dr. Murman....Goya Foods, Inc. is a producer of a brand of foods sold in the United States and many Hispanic countries including Spain and the Dominican Republic. The company headquarters is in Secaucus, New Jersey. It is the largest Hispanic-owned food company in the United States.

@nathanbieber2840 5 жыл бұрын

wow best video on process improvement ever!

@raatri1981 4 жыл бұрын

what a talent! "B.S. Aeronautical Engineering, Princeton University, 1965; Ph.D. Aerospace and Mechanical Sciences, Princeton University, 1967"

@WorldSurvivalist 5 жыл бұрын

Well explained

@drtonyburns7321 2 жыл бұрын

"Six Sigma Champions are con men " “All you have is smoke and mirrors ...” - Creator of Six Sigma, Mikel Harry

@supersnapp 4 жыл бұрын

Six Sigma is based upon several falsehoods. Six Sigma classes don't fall into the category of education. They are doctrine. But what supports all of it? The following inaccurate proposals. 1. That Six Sigma was based upon quality methods used in Japan (No it isn't) 2. That Six Sigma was used GE (True, but GE never improved the businesses it owed. It functioned more as a corporate raider wringing out short term profits. The appliances division, a top division prior to Jack Welsh lost all of its name recognition and was sold to the Chinese years ago) 3. Six Sigma is based in solid and scientifically proven statistics (No. It uses statistics to justify itself, but its statistics don't add up and are rigged to derive the conclusion. The stats is to give it a facia of legitimacy. 4. That an arbitrarily high level of defect standards has statistical support. If you question the statistical support, you get pushed back to either point 1 or 2, which are also not true. If you debate point 1, you get pushed to point 2 or 3. This is some type of algorithm for BS. What is impressive is how, Six Sigma, with zero evidence, has that many books published on it. This article explains how GE's previous success was based on financial chicanery, and this should cause everyone to question Six Sigma. bit.ly/2qODX3n

@olutayosolana6013 4 жыл бұрын

Shaun Snapp please suggest a better methodology or quality control method

@supersnapp 4 жыл бұрын

@@olutayosolana6013 Yes, I would recommend just not doing Six Sigma. That would be a great start. For example, quality standards should be determined by trade-offs, not by arbitrary quality levels. This is available to anyone who can simply calculate trade-offs. Should toilet paper rolls be measured at 1 defect per 3.4 million? No, it is not worth it. Also, I would recommend not lying. So, don't lie about GE having higher quality than other companies. bit.ly/2MCKbjp Don't lie about SS being based upon Deming bit.ly/2MCKbjp. Don't lie about SS being based upon anything related to Japenese manufacturing. Finally, acknowledge that now GE was really nothing more than a financial engineering firm with a veneer of operational improvement, acknowledge that SS did nothing for GE. bit.ly/2qODX3n Now that GE is teetering on bankruptcy it is interesting how little SS devotees want to talk about GE. If SS is so valid, why are so many lies necessary to sell it? So my methodology is to not lie about things or try to trick people that something that is based upon false mathematics and false claims is actually true. All of the questions related to operations management are already publicly available, SS does nothing but detracts from the existing body of work in areas ranging from quality management to supply chain management.

@JimmyMorgan1979 4 жыл бұрын

@@supersnapp that response is not helpful. You point out what you see as problems with the video and the process but you do not offer up any true methodology that would achieve the same or similar goals.

@supersnapp 4 жыл бұрын

@@JimmyMorgan1979 That is not a valid criticism. Critiquing the validity of a proposal or method is not incumbent upon providing an alternative approach. I could describe how a trade-off approach to quality and using standard inventory methods is superior to Six Sigma -- however, that is not related to whether Six Sigma is valid or is based upon false claims. Every proposal can be and should be evaluated for the evidence that it presents. This does not require an evaluation of other options. Secondly, as I am right, my comment is quite helpful in that it might make those who would be deceived by Six Sigma proponents to question the claims of Six Sigma and potentially never embark on Six Sigma. Also, Six Sigma is not a methodology -- it is not a study of methods. Six Sigma is a method. See the explanation here. bit.ly/2DggM7f