iSixSigma

RC

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  • RC replied to the topic Six Sigma in the forum General 13 years, 9 months ago

    Why is it useless and meaningless? I would say that 3.4 PPM is not necessarily significant to everyone at every time, however, using simga levels and DPMO is useful in communicating the performance of your process, is it not? It is another way of expressing Cp and Cpk; jargon that helps professionals communicate effectively.

  • RC replied to the topic originator of six sigma in the forum General 13 years, 9 months ago

    As Socrates famously said “I know nothing.” :) I wouldn’t say that it necessarily “kicks in” at this point, rather, 6 sigma seemingly lies at the highest threshold of attainable improvement for moderate investment of effort.

  • RC replied to the topic originator of six sigma in the forum General 13 years, 9 months ago

    That is, if perfection is defined at 99.9996600 % Conformance or 3.4 Defects per million opportunities. You can of course reach closer to perfection (100% conformance 100% of the time) with a larger sigma value. However, this effort is certainly limited by the Law of Diminishing Returns.

  • RC replied to the topic Posting problems? in the forum General 13 years, 9 months ago

    My replies haven’t been showing up as when I click on my own reply it simply brings me to the forum list and doesn’t display the text of my message.

  • RC replied to the topic Non-Normal Data in the forum General 14 years, 9 months ago

    Sounds to me like you are not a Black Belt or trained in Lean or Six Sigma. If you are asking someone to do the data analysis for you the just ask – do not beat around the bush.
    I have seen a lot of links on this web site in which it appears that people that are not trained want to have others provide the answers to their projects.
    There a a…[Read more]

  • RC replied to the topic FMEA in the forum General 15 years, 9 months ago

    Hello Monk,
    I agree with Philips approach, I think it’s very innovative. People shouldn’t listen to you.
    I think you’re a shame to the six sigma profession, how about that?
    RC

  • RC replied to the topic Doubt in DOE in the forum General 19 years, 11 months ago

    vijay The 3 parameters are distance, preassure and voltage.
    How many of them are independent? I don’t know I’m traying to find it.
    and the length of the weld is in milimeters
    Thanks for your help.

  • RC replied to the topic Doubt in DOE in the forum General 19 years, 12 months ago

    The experiment already was made, but with limited results, but now I’m going run it again with the advice that you have given me.Thank you very much for your help