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Six Sigma Disadvantages?

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  • #30646

    Edith
    Participant

    Hi
    I´m a student, and I´m looking for six sigma information, I have been looking in the Internet  and I have found about the methodology, and some advantages, but I could not found nothing about the disadvantages.
    And I was wondering if some one could help me?, Please if you know where I could find this let me know. my e-mail is @hotmail.com">edith_rh@hotmail.com
    Thank you
     

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    #80063

    Oli
    Participant

    Edith,
    That’s a strange question. Why would a company implement a system that has disadvantages? That sounds ridiculous, doesn’t it? Perhaps your looking for shortcomings of the six sigma system? Or critical success factors that if not met will lead to failures? Try searching this site for some of those keywords and I think you’ll find what you’re looking for.
    Oli

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    #80064

    RT
    Member

    Edith:
    I have learned and lived the advantages of SS, but I have never seen disadvantages listed anywhere.  Let me give you my list.
    Requires sizable initial investment to implement i.e. training, materials and people hours.
    Does not succeed without management level buy-in (as with any other major initiative).
    A successful program needs top down buy-in (management, engineering, tech’s and assembly).
    Requires in-house experts to monitor the projects and methodology (don’t audit your own work it always smells good).
    It’s easier to fail at implementing SS than it is to succeed.  This is why the initial investment is so large.  And once you have successfully implemented the process, you must put a program in to sustain it.  It’s also easier to execute a project without using SS.  It won’t be of the same quality but people tend to take the easiest path.  So make it a program.
    I work for a company that invest a good deal into SS implementation and I will tell you that you  have to work at it to keep it alive, but I’ll also tells you that it’s worth every dime. 

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    #80065

    Jamie
    Participant

    I don’t think the question sounds ridiculous. Is a shortcoming not a disadvantage? I think the poster is asking for pro’s and con’s. Why would a company impliment a system with disadavantages?… because the advantages outweigh the disadavantages. Simple put the benefit exceeds the expense. This sounds like every business decision we make.
    I see some of the disadvantages (con’s, shortcomings, whatever you want to call them) are time, cost, and needed commitment. Six Sigma requires significant resources throughout a business unit to become successful. If you don’t allocate enough resources you can waste the effort you put in.
    Jamie
     

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