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Process Sigma or DPMO

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  • #53053

    Sorour
    Participant

    Im having difficulty determining whether my teams quality is acceptable (process sigma 5.26) or NOT acceptable (DPMO 84.94).  My organization does not measure either, hence, I am leading the charge.
     
    What should I consider a good starting point for a goal?  Process sigma or DPMO?
     
    Thanks for the input:)

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    #187655

    Don Strayer
    Participant

    5.26 process sigma and 84.94 DPMO are equivalent.  Why do you think one is acceptable while the other is not?

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    #187659

    Mikel
    Member

    Paul, What kind of charge are you trying to lead? Either measure is quite good and if your data is real, you might want
    to tell us how it is being achieved now.I suspect that no one on this forum is achieving this kind of quality
    across the board.

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    #187669

    MBBinWI
    Participant

    Paul:  What is the cost of poor quality?  If a defect costs the organization $0.01 and your volume is 10,000 units per year, I’d say your quality level is excessive.  On the other hand, if each defect is $1,000 and you are making 100,000,000,000 per year, you probably can justify further quality improvement.
    The metric is not the critical issue, it’s what the metric means to the organization that’s important.
    However, that said, DPMO (I have found) is subject to gaming, as the number of opportunities is often not rigorously evaluated.

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    #187734

    Jayen466
    Participant

    They’re mathematically equivalent. To establish the cost of poor quality, and draw up a financial rationale for a project, you’ll need DPMO though.J.

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