iSixSigma

Hogg

Activity

  • Hogg replied to the topic Sales commission analysis in the forum General 13 years, 8 months ago

    Shiela,Suggest you ask “Why” 5 times – why do you want to cut sales commission costs. The 5-why’s will take you to a better root cause to address.You might find that shifting the compensation model to base commissions on net revenue or margin will focus your sales force on the products which contribute to your financial health and not the “easy…[Read more]

  • Hogg replied to the topic Process Yield in the forum General 14 years, 10 months ago

    I’ve once again copied a bit of history:Bill Smith, a Motorola engineer claims that for uncontrolled processes “batch to batch variation can be as much as +/-1.5 sigma off target.” He gives no references or justification for this. In reality there is no limit to how much that uncontrolled processes may vary. At that time Motorola used Cp=1. Bill…[Read more]

  • Hogg replied to the topic Six sigma in the forum General 14 years, 10 months ago

    Good point.  We could set a 95% confidence level for the number and stupidity of posts on various topics … let’s see:
    1.5 floating mean – 95% confidence that 95% of the six sigma population are stupid enough to believe it and 95% will have something stupid to say and we will get another 95 posts on it.

  • Hogg replied to the topic Six sigma in the forum General 14 years, 10 months ago

    You idiot.  One forum is enough here – when it comes to six sigma, there is no difference between amateurs, the mature and the crazy.  There all make equally idiotic statements.

  • Hogg replied to the topic 6 Sigma in the forum General 14 years, 11 months ago

    When will all you numb skulls wake up to the fact that “sigma levels” are meaningless ?
    Estimating counts in the extreme tails of distributions is total nonsense.  Sigma is a measure of dispersion, or spread of data.  Sigma levels are like trying to predict the shape of a dog by counting the hairs on the tip of its tail.

  • Hogg replied to the topic upper specification limit in the forum General 15 years ago

    What is the purpose ?  What are you trying to achieve ?

  • Hogg replied to the topic upper specification limit in the forum General 15 years ago

    The Force,
    Instead of blindly following all the six sigma crap you have been taught, just stop and think for a moment about what you are saying.
    This guy has 9 samples and you are telling him to calculate dpmo.  I suppose you also would want him to use minitab to draw a normal distribution through his 9 point histogram … don’t worry, I have s…[Read more]

  • Why are you measuring proportion of high impact defects against total defects?  An overwhelming number of low impact defects could make your proportion if high impact look favorable.
    You should be measuring defects per opportunity DPMO – that would be defects related to something like function points – NOT other defects.

  • You are likely to see a change in process.  In order to enter into external resource contracts (especially fixed price contracts), you will need more firmly established and higher quality business and system requirements.  {This would be an improvement to even your inhouse process.}  Getting to these better business & system requirements will co…[Read more]

  • Depends on a few factors. What were the SS criterion you talk of?
    For it to be a SS project, there needs to be a measurable. You can measure performance before and after so see the results.
    I would need to know more about the project. What would the problem statement be?
     

  • Six-Sigma is all about data driven decisions. If the data is not correct, then the worng decision will be made. The data needs to be correct and it needs to be measured correctly. Otherwise, failure will result!
    Caroline mentioned above that her boss said he knows all the problems. This is a classic SS problem.
    Do not listen to peoples opinion,…[Read more]

  • Hogg replied to the topic Six Sigma in Ireland in the forum Europe 16 years, 3 months ago

    Aoife,
    I’m a Black Belt working for a major US Automotive OEM in the UK. From my own eperience, i’d imagine that the following is true;
    Most of the companies that adopt Six-Sigma in Ireland are multinationals. The Six-Sigma deployment is therefore probably operated from the headquarters in US/Europe.
    I’m Irish and looking to move back home so…[Read more]

  • I think discriminant analysis might be your best bet. I have used it before when identifying clusters and predicitng group membership. I had many more variables than 180, but it worked pretty well.
     
    Good Luck!

  • Hogg replied to the topic Innovating for Six Sigma in the forum General 17 years, 6 months ago

    Please do not insult me by suggesting that I am not interested in Innovation in Six Sigma. I believe very much in innovation, and Six Sigma. I use TRIZ, and it is my interest in this field that prompted me to reply to your post, which was originally about your “new equation”.
    I have commented on your equation (as you requested), by referencing…[Read more]

  • Hogg replied to the topic Innovating for Six Sigma in the forum General 17 years, 6 months ago

    The conflict over who invented the “doughnut” was the impetus for “The Great Doughnut Debate,” held in New York in 1941. Affidavits, letters and other documents were presented. Judges eventually confirmed Captain Hanson Crockett Gregory had indeed invented the doughnut and its hole in 1847.
     
    “Young Hanson,” the Smithsonian Institute r[Read more]

  • Hogg replied to the topic Innovating for Six Sigma in the forum General 17 years, 6 months ago

    The scientific method suggests that any new theory is proven by attempting to disprove it first. If your equation is wrong it will only take a few moments to come up with an example that neatly disproves it.
     
    If ‘thinking about it with an open mind’ means not first attempting to prove that it is wrong or even first testing your theory, then yo…[Read more]

  • Hogg replied to the topic Innovating for Six Sigma in the forum General 17 years, 6 months ago

    You are 50 years too late. Innovation theory was worked out between 1946 and 1979 by Genrich Altshuller et al and is known as TRIZ – the Theory of Inventive Problem Solving.
     
    An innovation is an idea that solves an inventive problem.
    An inventive problem is one that contains a fundamental contradiction, either in terms of the need for two c…[Read more]

  • Hogg replied to the topic DMADV in the forum General 18 years, 4 months ago

    Exactly the problem I and my teams came across when I first started using Design for Six Sigma, which is why I renamed the DMADV methodology DCCDI – Define, Customer, Concept, Design, Implement.
    In the measure – Customer – stage we find out what the many customers (end customer, suppliers, employees, business) require of the new product / service…[Read more]

  • Hogg replied to the topic Normal Distribution? in the forum General 18 years, 5 months ago

    My (limited) understanding of sixsigma is that sigma means standard deviations. That we are aiming to have failures in the tail represented by that portion under a distribution graph which lies at least 6 sd’s from the mean.
    This assumes several things: that the distribution is normal. That there is a distribution. (a measured variable), that…[Read more]

  • Hogg replied to the topic Sigma Versus Cpk Values in the forum General 18 years, 7 months ago

    If the process sigma metric is S, then
     
    S = 3 Cp  (Cp 1 = 3 sigma, Cp 2 = 6 sigma)
     
    Now Cpk = Cp (1 – k), where k is the shift
     
    k is calculated as     shift / ( design spec width / 2)
    where shift and design spec are both measured in standard deviations
     
    In Six Sigma shift = 1.5 sd
     
    At 3 sigma design width is 6 sd , and at 6 sigma…[Read more]

  • Load More