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Popular Content

Showing content with the highest reputation since 10/22/2019 in all areas

  1. Description - Bench happily highlights that while planning his career, he had considered the choice between being a Generalist or a Specialist early in his life. Mark wants to know about the decision that he took. Bench says that he decided to keep options open for himself and proclaims himself as a "very general Generalist". After listening to Bench, Mark says that he has realized that he has taken a path different from the two options. He considers himself as a "specialized Generalist" or what can be considered as a "generalized Specialist". Bench want to understand what this means. Ma
    5 points
  2. Check this debate between Bench and Mark on announcing winners for a contest. Is Bench incorrect here? Description - There is an announcement that the results for Men vs Women contests are about to be announced by Bench an Mark. The reward is to be given to better performing gender. To add spice to the contest, men and women had been divided into younger and older folks. Bench comes on stage and says that he will announce the result with some analysis. He explains that younger men have done better than younger women. He then goes on to show that older men ha
    4 points
  3. Version 1.0.0

    409 downloads

    This zip file contains the study and exercise content for Lean Six Sigma Green Belt Training. You are requested to download and save this file in the laptop you will be using throughout the training. Note: It's important to download this file before the training to avoid any delay at the venue
    3 points
  4. Benchmark Six Sigma Expert View by Venugopal R One of the main intent for executing a project using the six sigma methodology is to guide a team through a disciplined approach to solve a problem in a highly objective manner. Various terminologies have been coined to reinforce the disciplined approach. “Process Door” and “Data Door” are terms used to broadly classify the approach to be used during the Analyze phase. Ironically, though one of the approaches is termed as “Data Door”, it does not mean that the “Process Door” will not use Data! Effectiveness and Efficiency Fir
    2 points
  5. Dunning Kruger Effect The Dunning Kruger effect is some cognitive bias in which people wrongly exaggerate their understanding or ability in a specific area, which tends to occur because a lack of self-awareness prevents them from accurately assessing their skills. Understanding the Dunning-Kruger Effect The Dunning-Kruger effect concept is based on a 1999 paper by Cornell University psychologists David Dunning and Justin Kruger. The duo tested participants on their logic, grammar, and sense of humor, and found that those who finished in the bottom quartile rated their skill
    2 points
  6. CTQ (Critical to Quality) Tree is used to drill down to a more concrete project goal. It starts with wider project goal and works downwards to identify “Critical” factors that is required in achieving the goal. In simple words drill down generic goal, identify specific and measurable necessities to improve performance. It translates customer needs to Meaningful, Measurable, and Actionable metrics. Approach: Step 1: Identify Critical Needs "What is critical for this product or service?" Brainstorm needs with key stakeholders Step 2: Identify Quality Requi
    2 points
  7. Multicollinearity is a statistical phenomenon. It happens when several independent variables are highly correlated, However not perfectly correlated and In this situation we get regression results to be unreliable. In the above example, we could see how and to what extend does Consumer Price Index and Inflation Index can predict the rates. There is a considerable overlap between Consumer Price Index and Borrow Rate and Substantial overlap between Inflation Index and Borrow rate. Now, because there is a significant overlap between Consumer Price Index and Inflation Index
    2 points
  8. Andon System The origin of the “Andon” word in Japanese comes from the utilization of traditional lighting equipment employing a burning lamp made out of bamboo and paper. This “Andon” idea translated for manufacturing in Japan. The “Andon” became used as a proof to spotlight an anomaly (i.e., a flashing light). This signal would amplify potential defects in quality. When an error was suspected, an indication board would display a sign to the precise workstation having an issue. The signal event would also show that it stopped the system for the defect and expected the matter to be resolved
    2 points
  9. Andon! Everyone knows his child hood stories of Alarms given by elders about not doing something by some typical facial actions, sounds or even by showing something. It was to warn a child for not doing something else he may get hurt, he may get injured or there could be an accident. And it used to work; the child will remember all those actions, alarms and will not go near those things, will not touch and this way his life was saved. He continued the same thing when he was matured enough to teach other children’s. Really a very powerful technique of teaching, alarming and wa
    2 points
  10. What is a Venn diagram? John Venn who coined the Venn diagram in 1880 was an English mathematician, logician and philosopher. He also called them Euler diagrams after Leonhard Euler, who checked them out a century before. This is an extraordinarily flexible technique of combining circles useful for identify the contrast between overlapping areas of uniqueness. This representation of how groups relate to one another are generally called “sets”. There must be minimum two number of circles, and also the probability of maximum for many uses is 3. However, there can be more shapes
    2 points
  11. Benchmark Six Sigma Expert View by Venugopal R First of all, let us salute all those who are engaged in protecting us from this pandemic, which greatly includes all the people who are directly or indirectly involved in healthcare activities, under such challenging and trying circumstances. Any views on this forum should never be mistaken as a criticism towards anyone doing such noble service, but as a discussion for learning from the experiences and generate thoughts that could help society as a whole to be better prepared in future. One of main issues that we see across the h
    2 points
  12. Q 271. What is a residual in Regression? Why is it important to analyze the residuals before assessing the goodness of a Regression Model? What does it mean if Residuals are non normal or non random? Residual: Cutting-edge statistics and optimization, Residuals and statistical errors are closely related and easily disordered measures of the deviation of an observed value of an element of a statistical from its “Theoretical Value”. Residual = Observed value - Predicted value The Error of an observed value is the deviation of the observed value from the
    2 points
  13. This album contains Benchmark Six Sigma Training Photographs from January to March 2020.
    2 points
  14. From the album: Jan-Mar 2020

    This is a group photograph of the Black Belt Workshop held in Mumbai, February-March 2020.

    © Benchmark Six Sigma

    2 points
  15. Who does not like a pat on the back!! We also like it and hence we would like to hear from you. Your positive feedback helps us stay motivated and continue to deliver excellent workshops. Please click on 'Reply to this Topic' and share the comment that you want to be displayed on this forum as your positive feedback? We value your opinion!!!
    2 points
  16. With reference to Weight of Ox, Galton discovered that average guess was awfully close to the actual weight. Sporadically, it makes sense to go with guess from crowd intelligence, specifically when there is no scale, or when the measurement is expensive or when it is time-consuming for accurate measurement. Few considerations and points to be factored before we rely on this method would include the below pointers: Diversity of opinion Independence of opinion Trusting the group to be fair in terms of giving the opinion Should be cautious of Groupthink
    2 points
  17. We all wish a very Happy and Prosperous New Year 2020 to all Bench and Mark viewers! While Bench makes a wish about what is controlled by others, Mark wants to focus on what he can do. Being able to apply what has been learnt and to learn more of what is application oriented seems a wise.
    2 points
  18. Benchmark Six Sigma Expert View by Venugopal R Pascal's Triangle is named after the French Mathematician Blaise Pascal. It will look as depicted below: A quick examination about the Pascal’s triangle reveals the following: The top most row (referred to as 0th row) has one number, which is 1. The next row (first row) has two numbers (or two columns) and each number is the sum of the numbers of the boxes above from the previous row. The same practice continues, and we get the Pascal’s triangle. Thus if number on the nth row and kth column is represented
    2 points
  19. Zipf’s law as proposed by American linguist George Kingsley Zipf, states that frequency of any word in a language relates inversely with the rank of that word in frequency table. Frequency is the number of time, the word is appearing in the sample or a text . -The most commonly evident word in a corpus suppose has a frequency f -The second most appearing word , will have a frequency around f/2 -The third most appearing word would have frequency nearly f/3 -The fourth most appearing word would have frequency around f/4 Zipf’s law can be applied in many other data a
    2 points
  20. Fast-tracking and crashing are important techniques of project management to shorten/compress the project schedule. These techniques, though not commonly used ones, but have important applications in project management. -There may be various business reasons to do them, when the project is already running late due to various unexpected conditions like crunch of manpower and other resources . They may be also mooted in the event of internal and external pressure from various stakeholders of the organization to expedite the project and finish before deadline. FAST
    2 points
  21. From the album: Jan-Mar 2020

    This is a group photo of Kolkata Black Belt Workshop January 2020 batch.

    © Benchmark Six Sigma

    2 points
  22. From the album: Jan-Mar 2020

    This is a group photo of the Bangalore Green Belt Workshop January 2020 batch.

    © Benchmark Six Sigma

    2 points
  23. Benchmark Six Sigma Expert View by Venugopal R Using median as a measure of central tendency helps to avoid effect of outliers. For those who need a clarity on fundamental behavior of mean and median, the following simple example will help. Consider as set of nine data points representing the minimum time in days between failures for nine similar equipment. 70, 248, 2400, 240, 2, 1460, 230, 180, 440 The mean for the above data is 586 whereas the median is 240. Now consider the data set below, which is same as above except that the maximum value has furthe
    2 points
  24. Mean (Average) Mean is the best measure of central tendency in normally distributed data without significant outliers. As large number of distributions are symmetrical, mean represents the true estimate of distribution. Example: Mean height, weight etc. Mode Mode is the most repeated value in a set of data. Like, people become more inclined to things, that are undertaken by majority of the people. Median The median is the mid value that divides a set of values into top and bottom 50%. The income distribution in a country i
    2 points
  25. Q 223. Resolution, Bias, Stability, Linearity and Precision are the five things that are checked while performing Gage R&R. What is the order in which these 5 things are to be checked? Note for website visitors - Two questions are asked every week on this platform. One on Tuesday and the other on Friday. All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/ Please visit the forum home page at https://www.benchmarksixsigma.com/forum/ to respond to the latest question open till the next T
    2 points
  26. From the album: Oct-Dec 2019

    This is a group photo from Delhi Lean Six Sigma Green Belt Workshop December 2019 batch.

    © Benchmark Six Sigma

    2 points
  27. Kaizen, Kaikaku and Kakushin are three approaches within Lean which have their roots from Toyota. They work well together and have different areas of focus and magnitude of impact/risk. The table below provides differentiation and tips for their implementation. Kaizen - Kai – Change, Zen – Good Kaikaku – Radical Change Kakushin – Innovation Definition Evolutionary change for better focused on incremental improvements Revolutio
    2 points
  28. Kaizen : It is a combination of two Japanese words , kai and zen . Kai means “Change” and Zen means “for the better” resulting in the meaning as “Change for the better”. It refers to any continuous improvement done in workplace, using small incremental changes Kaikaku: It is the Japanese term for ‘ radical change’ . It talks about the fundamental cum radical changes that we make to the system, in which we are working Kakushin: In Japanese it means ‘Innovation’ . It talks about the fact that changes done in the system (that we work upon) can sometimes lead to a paradigm shift in
    2 points
  29. Two Sample T Tests are statistical tests that are used to compare the mean values of two independent samples/groups to determine if there is a significant difference between the means of 2 samples in reference. Two samples are considered to be independent if the selection of individuals/objects of one sample does not influence the selection of individuals/objects in the other sample in any way. The data from both samples should be normally distributed to apply the Two Sample T Test. On the other hand, a Paired T Test is a statistical test that is used to compare the mean values of
    1 point
  30. Let us consider two numbers a and b where a is greater than b. If the ratio of the sum of these numbers (i.e. a+b) to the larger number (i.e. a) is same as the ratio of the numbers (i.e a is to be), then these two numbers are said to be in a Golden Ratio. Golden Ratio => (a+b) / a = a / b This is denoted by Greek letter phi ( or ). This ratio comes to an irrational number = 1.618 Applicability of Golden Ratio is found in 1. Nature - sunflower, position of leaves 2. Architecture 3. Art 4. Music 5. Technical Analysis of Stocks
    1 point
  31. The Holy Trinity for any successful project hey are depicted in the above picture. The Success of a project is dependent on 3 important aspect which is schedule ,scope and budget . hey in order to make a project successful it is imperative that one site of the triangle should be in one’s control the other 2 can be in control of the customer. If scope ,budget and schedule are in control off the customer there can be a challenge in the quality of the project deliverable . there are many organisation who face this challenge sense they have a very demanding customer who tries to have us very
    1 point
  32. An interrelationship diagram can depict relationship in a complex situation; the one which are not easily traceable. It can be best used when 1. Trying to understand links between ideas or cause and effect relationships; especially when trying to identify greatest impact of improvement 2. When complex issue is analyzed for causes 3. When complex solution is being implemented 4. In RCA, to understand how different aspects of problems are connected Seeing that relationship between problem and possible cause can be further analyzed 5. After generating fish
    1 point
  33. Defect Concentration Diagram / Problem Concentration Diagram is one of the "Magnificent Seven" SPC tools. It is also referred as Location Plot or Defect Location Check Sheet. Defect Concentration Diagram is a graphical tool that is used in analyzing the causes of the unit defects. It can be used and applied to any process, it shows the picture of the unit/product (or item of interest) and associated defects in the unit, in all relevant views. Location and frequencies of various defects are clearly given in visuals. Defect data segregated based on location. The diagram i
    1 point
  34. 1. Goal means diagram 2. Problem definition tree
    1 point
  35. Various Approaches would be: 1. Project Definition 2. Parameters 3. Customer Perspective Taking an example of Mobile Phone manufacturing it is defined what it could deliver. There are parameter which are set to match the demands on market. Features are included or modified on customer feedback.
    1 point
  36. Minimum Viable Product (MVP): MVP is a concept that originated in the lean startup methodology introduced by Eric Ries in 2011. A minimum viable product is the version of a new product which allows a team the maximum amount of validated learning about customers with the least effort. Minimum Viable Product is a strategy used for fast and quantitative market testing of a product or product features. MVP is a version of a product that allows the team to collect as much feedback from customers for the product with the least effort. Visionary customers can fill in the gaps on miss
    1 point
  37. In my opinion all activities in sales and marketing, are itself small process, hence six sigma is applicable at stage of sales and marketing 1.Presales - identification of potential customer .. custering / segmentation .. prediction of who will buy and who will not ....maltivariate analysis, Multiple logistic regression 2. Response to time query by potential customers 3. Prediction of customer will reorder or not 4. Identification of customers needs and wants DOE/ KANO modeling 5. Lean concept _ mini
    1 point
  38. Benchmark Six Sigma Expert View by Venugopal R The Kaplan Meier chart is used to estimate the probability of survival during a medical research. For instance, let us consider that we are interested to study the effect of a particular drug for treatment of a life-threatening disease. The study based on 10 patients who were subjected to this treatment is plotted as below, which is knows as Kaplan Meier chart. The Y axis represents the probability of survival and the X axis represents time (say no. of years). As seen, at the start the probability of
    1 point
  39. Overall equipment effectiveness (OEE) is one of the most effective and commonly utilized tool in lean methodology and lean manufacturing. Importance of OEE lies in : 1.Identifying the source of inefficiency 2.Quantifying the degree of inefficiency 3. Labelling the quality of goods produced/service rendered OEE combines three factors namely -1) availability 2) performance 3) quality Ideal OEE score is 100%, meaning production of cent percent defect less products/process, at maximum speed possible, and with no interruptions/breakdown. The output e
    1 point
  40. Q 225. As per Nash Equilibrium, one cannot predict the result of the choices of multiple decision makers if one analyzes those decisions in isolation. Instead, one must ask what each player would do, taking into account the decision-making of the others. What is the practical utility of Nash Equilibrium in Organizational Decision Making? Note for website visitors - Two questions are asked every week on this platform. One on Tuesday and the other on Friday. All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-ex
    1 point
  41. From the album: Oct-Dec 2019

    This is a group photo from the December batch of Lean Six Sigma Black Belt training conducted by Benchmark Six Sigma at Chennai.

    © Benchmark Six Sigma

    1 point
  42. Benchmark Six Sigma Expert View by Venugopal R Burn Down and Burn Up charts are used in Agile Scrum for visual tracking of the progress of a project. The charts typically use ‘Project Story points’ on the Y axis and the no. of iterations on the X axis. Story points are metrics used in agile management to quantify the effort for implementing a given story. Sometimes the time (total FTE hours) is used instead of story points. Burn Down charts help to see the remaining amount of work, the pace of the project with respect to the target, and will give an idea with how c
    1 point
  43. Someone asked me how Lean Six Sigma will be put to use in a background check process. Here is the sequence that one may like to follow to identify and complete a project - Identify the biggest business challenges in Background Verification sequences. This could be in Education, Employment or Criminal. Let us say, that the challenge is fake certificates for qualification or employment. Once the biggest challenge area is identified, we will focus on the process. Which sequence is creating a bigger challenge? Is it verification through centralized database or t
    1 point
  44. This is quite interesting to debate. Companies often ask for relevant experience and there by chose the candidate appropriately. If we hop the verticals and horizontals, then its challenging to accept us in the organization. companies don't need generalized specialist, rather specialized generalist are required for the business benefits.
    1 point
  45. Natwar Lal has provided four different service sector scenarios of Genchi Gembutsu and he is the deserving winner for this question. Do have a look at the response by Benchmark Expert - Venugopal.
    1 point
  46. Looking at the above differences, it becomes clear as to why Test of Equivalence is considered as opposite of Hypothesis testing. Having laid down the differences, there are some similarities as well 1. Both work with samples and apply the concepts of Inferential Statistics (Significance Level, Confidence Intervals etc.) 2. Researcher is interested in Alternate Hypothesis in both (even though the alternate hypothesis are opposite in the two) Choice between hypothesis testing and equivalence will depend on the purpose of the study. Equivalence tests are
    1 point
  47. Null hypothesis assumes that the population mean is the same as a target value or another population mean. In equivalence testing, the null hypothesis assumes the population mean differs from a target value or other population mean. For example, difference between a 2-sample t-test (Hypothesis) and a 2-sample equivalence test can be best illustrated as, 2-sample t-test to test whether the means of two populations are different. The hypotheses for the test are as follows: Null hypothesis (H0): The means of the two given populations are the same. Alternative hypo
    1 point
  48. Kaizen refers to small improvements in work place. Most popular methodology for Kaizen is Quality circles or Small Group Activities. Kaikaku refers to a larger revolutionary change. it could be an enterprise wide ranging project, that brings in a large savings or improvement to the process or product. Kakushin refers to an innovative change of a higher order than the above. it could be a total newly conceptualized product. As explained above, each of the three terms refer to change, but at significantly different order of change and usually carried out by d
    1 point
  49. Very good six sigma projects have been taken up in American Education Establishments. These include(but are not limited to) Reducing time for fee collection and administrative processes. Improving productivity in education support processes. Reducing lag in education delivery. Improving parent and student feedbacks Improving staff satisfaction and retention. Designing education delivery processes. Improving efficiency in canteen, parking and security related processes. Reducing administrative costs. Improving student engagement. Improving placement processes. Reducing time for admissions proce
    1 point
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