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  • #31212

    Ernst Jankulik
    Participant

    Has anybody a MT in six sigma? Would like to do a Master Thesis in CI with 6s. Thanks for reply.

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    #82147

    Jamie
    Participant

    I’m not aware of much work done on CI’s for sigma level (but I’m not the best person to know). I do know some posts to this group have provided a method to do so. Might try a search.
    The main reason I’m posting is to suggest that you consider research on the 1.5 sigma shift that we apply to long term data to estimate short term Sigma level. Every sigma lookup table (not z table) I’ve used adds 1.5, yet I’ve not seen any empirical evidence to support this. This would certainly be interesting to either study in simulation or derive true values by studying real processes. The lit study alone would be worthwhile. A hole host of questions are still left unaswered about 1.5. What are the conditions where 1.5 is appropraite and when should 1.5 be added? I’d argue that most data (not taken in true batches) is somewhere betweem short and long term. Does this mean we should be adding some number between 0 and 1.5? Is 1.5 the max we are likely to see between short and long term or is it some average? Is this number different for different industries/process type? Certainly other questions exist and I’ve yet to meet an MBB that can answer them (not to mean there aren’t readers of this group that can).
    Best of luck in your studies,
    Jamie
     

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    #82148

    Chip Hewette
    Participant

    You might contact Dr. Robert Mees at the University of Tennessee, Knoxville to inquire about master’s theses in continuous improvement.

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    #82151

    Rick Otero
    Member

    Jamie,
    I’m making the assumpttion you are looking for an idea related to a thesis involving Six Sigma. 
    First, with a bit of hesitation at the response this will get, consider Six Sigma essentially a branded packaging of various quality improvement tools and techniques.  Motorola claims that its theirs, blah blah.  Legal battles have ensued over trademarks about who owns Six Sigma and DMAIC, etc. 
    An opinion, the root of Six Sigma is creating a customer focused quality mindset (a la Deming Crosby. etc) linked with a structured improvement methodlogy, (i.e. QFD front-end with robust engineering back end), adding in the traditional tool kit of Total Quality Management and a heavy dose of statistically based approaches (Design of Experiments) and then – heaven forbid – a culture that says Management not only manages but measures outcomes…. voila and a mega billion consulting business is born!!!!
    What I would offer is many in the aerospace field and automotive industry were leading in advancing the capability of quailty improvement towards zero defect – something Phil Crosby and Deming and others have been advocating for some time.  The clever piece was combining the methodologies.
    An area ripe for the improvement in the Six Sigma world is either advancing the current Six Sigma tool kit in the area of marketing effectiveness or advancing the application of DOE theory in complex transaction and service businesses.   Why, because I believe pragmatic simplification of how to go about this – rather than complicated conjoint analysis and high factorial designs of experiments – would really take Six Sigma to a new level.  Jerry Blakesle, one of the Six Sigma leaders at Price Waterhouse Coopers (now IBM?) and I were chatting and he said it was a mistake of fate that had Six Sigma linked to manufacturing as its just as powerful in service and marketing (grin)!
    OK… more practically… if I do a search in Google on things like design thesis, axiomatic design thesis, quality function deployment thesis, total quality management thesis, and (here’s the trick) add pdf in the search term here are some starters for you.
    http://www.mit.edu/people/yfwei/publication/PhD%20Thesis.pdf
    http://www.barringer1.com/pdf/Barringer-Roberts-AICHE-Paper.pdf
    http://www.ub.rug.nl/eldoc/dis/management/z.zhang/thesis.pdf
    http://www.srl.gatech.edu/education/ME3110/textbook/textbook.pdf
    http://alexandria.tue.nl/extra2/200011605.pdf
    http://www.porto.ucp.pt/feg/docentes/rsousa/Files/thesis_summary.pdf
     
    Best of Luck!
    Rick Otero
    Sr. Vice President and MBB
    Bank of America, Customer Relationship Management
     

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    #82152

    Robert Butler
    Participant

      If Jamie’s suggestion is of interest to you, a good starting point for research into the 1.5 shift would be the Davis Bothe article which appeared in Quality Engineering last year.  If you want the particulars, as well as the cites for what appear to be the only published papers that provide the empirical basis for 1.5, they are listed in a post to this forum on 11 October 2002 under the thread “Is There Any Empirical Evidence to the 1.5 Shift”

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    #82247

    beau
    Participant

    Hi people,
    I am doing my masters thesis in CI and trying to come up with a model that allows companies assess themselves. Does anyone know of any kind of a model or a matrix developed in CI.
    would appreciate the help..
    beau
     
     
     

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