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    THE OPEN QUESTION on the forum is Float. This is part of our TWO QUESTIONS PER WEEK initiative. One question is launched on Tuesday and the other on Friday at 5 PM IST. Best answers are recognized well on this most active Lean Six Sigma forum. (Benchmark Six Sigma Forum ranks first on Google Search based on popularity). 

     

    The most recently answered question and the best response(s) can be seen here - 80/20 RuleAll questions can be seen here. The entire Dictionary of Business Excellence terms is here.

     

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  1. Discussion Center

    1. We ask and you answer! The best answer wins!

      Questions need to be answered in a limited time and use a specific format. The answers are showcased with the definition of the term in the World's Best Business Excellence Dictionary. 

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      Bench is on the bench. Mark is on the mark. With a series of cartoons, see how Bench and Mark behave differently in approach towards solving management problems. Learn why Mark is successful when Bench is not. New toon appears every Wednesday. Discussions are open against each cartoon. 

       

       

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    3. Master Black Belt and its competencies

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  • ALL TIME GB TOP SCORERS

     

    Name

    Score (%)

    City/Year

     
     

    Purvi Gupta

    100

    Del 2019

     

    Bhawana Sethi

    100

    Del 2015

     

    Adyan Prabhakaran

    100

    Hyd 2014

     

    Thirumoorthi.M

    99

    Chn 2019

     

    Sneha Vivek More

    99

    Mum 2019

     

    Sumita Maiti

    99

    Kol 2017

     

    Vidula Valavalkar

    99

    Hyd 2014

     

    Vishal Tillu

    99

    Mum 2014

     

    Yashwanth J G

    99

    Bng 2013

     

    Jyothi Kanuri

    99

    Hyd 2013

     

    Vrajesh Parekh

    99

    Mum 2013

     

    Gnanasekaran D

    99

    Chn 2012

     

    Benoy Ramachandran

    99

    Chn 2012

     

     

    Muthu Naveen S

    99

    Mum 2012

     

    Ketan Trivedi

    99

    Mum 2012

     

    Piyush Mangal

    99

    Del 2011

     

    Sourav Thakur

    99

    Del 2011

     

    Tushar Chaudhari

    99

    Mum 2011

     

    Komal Bansal

    99

    Mum 2011

     

    Parag Suresh Kamble

    99

    Mum 2011

     

    Ritik Gupta

    99

    Pun 2011

     

    Amit Kumar Makkar

    99

    Del 2010

     

    Shaifali Singh

    99

    Del 2010

     

    Clarence Wong

    99

    Hyd 2010

     

    Devendra Singh Baghel

    99

    Hyd 2010

     

    Varun Hemrajani

    99

    Pun 2010

     
         

    Here is the complete list of all time Lean Six Sigma Green Belt Top Scorers

  • ALL TIME BB TOP SCORERS

     

    Name

    Score (%)

    City/Year

     
     

    Kunal Obhrai

    98

    Del 2019

     

    Mahesh P K

    98

    Bng 2017

     

    Balaji M

    97

    Bng 2017

     

    Rohit Arora

    97

    Bng 2017

     

    Amit Kumar Makkar

    97

    Del 2015

     

    Kanishk Jain

    97

    Bng 2014

     

    Akshay Khatri

    97

    Del 2013

     

    Rahul Kumar

    97

    Mum 2013

     

    Sairam Balakrishnan

    97

    Hyd 2011

     

    Ashish Sharma

    96

    Pun 2019

     

    Sunil M. Bhat

    96

    Bng 2017

     

    Rohan Chavali

    96

    Del 2017

     

    Apoorve Arya

    96

    Mum 2014

     

    Sandeep P.R. 

    96

    Chn 2013

     

    Awojide Martins Olabisi

    95

    Mum 2020

     

    Zeshan Abubacker

    95

    Bng 2019

     

    Kumar Kaushal

    95

    Del 2019

     

    Vishal Kanojia

    95

    Hyd 2019

     

    Swati Malhotra

    95

    Mum 2019

     

    Nithin Sandhyala

    95

    Bng 2017

     

    Abhishek Arora

    95

    Del 2017

     

    Satishkumar Jain

    95

    Mum 2017

     

    Atirakshit Bhatt

    95

    Mum 2017

     

    Narendra Anil Murdeshwar

    95

    Pun 2017

     

    Rupinder Kaur Narang

    95

    Del 2016

     

    S Sujay Kumar

    95

    Mum 2016

     

    Kuljinder Kaur

    95

    Del 2015

     

    Vetrivendhan K P

    95

    Bng 2014

     

    Sunil Bissa

    95

    Chn 2013

     

    Mayank Gupta

    95

    Pun 2011

     

    Here is the complete list of all time Lean Six Sigma Black Belt Top Scorers

  • Posts

    • Most of the respondents have answered it correctly. Pareto is used as a prioritization tool i.e. to focus on the critical areas which when worked upon have a potential to give a big benefit. Adil Khan has given the best answer to the question.   Also read the answer from Aarti. She has highlighted areas where Pareto cannot be used.
    • Q 621. What is float in context of Critical Path Method (CPM)? How is it calculated and how can a project lead use it to optimize the project timelines? Illustrate your answers with an example.   Note for website visitors - This platform hosts two weekly questions, one on Tuesday and the other on Friday.  All previous questions can be found here: https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/.  To participate in the current question, please visit the forum homepage at https://www.benchmarksixsigma.com/forum/. The question will be open until Tuesday or Friday at 5 PM Indian Standard Time, depending on the launch day.  Responses will not be visible until they are reviewed, and only non-plagiarised answers with less than 5-10% plagiarism will be approved.  If you are unsure about plagiarism, please check your answer using a plagiarism checker tool such as https://smallseotools.com/plagiarism-checker/ before submitting.  All correct answers shall be published, and the top-rated answer will be displayed first. The author will receive an honorable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term. Some people seem to be using AI platforms to find forum answers. This is a risky approach as AI responses are error prone as our questions are application-oriented (they are never straightforward). Have a look at this funny example - https://www.benchmarksixsigma.com/forum/topic/39458-using-ai-to-respond-to-forum-questions/ We also use an AI content detector at https://crossplag.com/ai-content-detector/. Only answers with less than 15-20% AI-generated content will be approved.
    • In the 80/20 Pareto concept, only a small portion (20%) of causes are responsible, for a portion (80%) of effects. To gain an understanding of these causes we can use a tool called the Pareto chart.   When working on improvement projects following this rule helps us prioritize issues that have the most impact on the outcome i.e looking for the critical Xs.  Pareto charts prove useful when identifying issues from a list in an FMEA (Failure Mode and Effects Analysis). It's important to note that for effectiveness we should ensure that these issues don't overlap and that our sample size is adequately large.   However, it's essential to acknowledge that the 80/20 rule is a theoretical concept. It may oversimplify business situations and does not apply universally in all contexts.   There are instances where this principle may not be applicable as a tool; Projects with more than 20% of important issues Issues with varying levels of importance where not all issues carry the same weightage. Different outcomes are possible ie. effort and impact may differ across issues. Because of the limitation of any one tool, when it comes to improvement projects, it's recommended to assess the best approach to prioritization and not rely solely on the 80/20 rule.
    • Let us please get acquainted with the Pareto Chart first. Lean Six Sigma practitioners use this bar chart often to concentrate on the most important parameters that contribute to a problem. It assists us to arrange all the improvement projects we may be currently considering to execute in the decreasing order of their importance and as we execute these projects, it assists us to consistently monitor the progress we make.  Let us now understand a little bit about the presentation of the chart. The bars in this chart are always arranged in decreasing order of magnitude such that the tallest bar highlights the parameters that have the highest priority. The total percentage of the effect is plotted as a line as well , enabling us to gain knowledge about the percentage of contribution of each effect to the total effect. Commonly, practitioners call the practical demonstration of this chart as Pareto Principle or Rule. It is called a principle or rule since it has been so widely observed in all spheres of life that is almost seen as a phenomenon. The phenomenon we are talking about is that approximately 80% of effects in a scenario are resultant from 20% of the causes. Hence, Pareto Principle is commonly also called the 80/20 Principle or Rule.  
    • Pareto analysis is used to plot total % of contributing factors which impact all the outcomes. And 80/20 rule in Pareto basically a standard assumption that 20% of the contributing factors impact 80% of the outcomes.    This is just a standard assumption though the rate may vary a little but in most cases it's very close.    So 80/20 Pareto rule helps focus on top priorities to focus on to gain maximum outcomes. 
    • According to the Pareto analysis, 80 percent of the problems are because of top 20 percent causes. Or in other words, 20 percent of the reasons cause 80 percent of the consequences.   One must not be adamant to be saying that 80:20 principles means actually 80:20, that is not correct. Realistically 70:30 also gives or portrays a better picture if one needs to eliminate maximum causes/reasons. Whether 80:20 or 70:30 or 60:40, the onus lies in fixing what has been the source of problems and must be eliminated as quickly as possible.   Now, 80:20 is just a decebt indication to tell one that major problems are caused by a few reasons , however it depends on business appetite whether they need tight specs or broad specs using 90:10, 80:20, 70:30 or any other combination.      
    • The Italian economist Vilfredo Pareto stated that 80% of the wealth of Italy was owned by 20% of the population of Italy.    IMHO, this became such a hit that the thought leaders cutting across many industries,  started applying  this in a business context, as a rule and proclaimed that 80% of the issues/problems in their ecosystem, are created by 20% of the causes. The idea was not to proclaim the exact numbers or percentage. But to portray the fact that the majority of the issues/problems are created by few of the major causes. That's how the 80/20 rule is applied in the business context.    Conclusion:  In reality, this is how the pattern looks in a typical data distribution     Reference Link: Wikipedia.org (for ascertaining the actual fact)
    • The 80/20 rule or Pareto principle was named after velfredo perato . That principle states that 80% of problems are caused by 20% of Cause. That means for each and every problem 80% losses are due to 20% of reason. Ex-80% of the business are due to 20% of the client.  This principle helps us to find the critical X for Out put. By using perato principle we can find the critical root causes to work on for improvement and improve the bottle necks. Example In a manufacturing industry the total breakdown is of 40h By doing the 80/20 analysis we came to see that only 2 reason that is 22% of total are having 80% of the breakdown time of total time.
    • In order to understand this question first we need to understand where this Pareto originated from. A Famous Italian economist named Vilfredo Pareto stated the Pareto principal when he observed that top 20% of population of his country are holding approximately 80% to total wealth (Vital Few, Trivial many). Later this concept was widely used in Quality Control when they observed defects also follow similar pattern as stated by pareto principal. Few problems leading to several parts rejections.   Commonly referred as 80/20 rule is just a representation. So cases can be 90/10 and some may follow 70/30. The concept its still the same the small amount of population is holding large amount of wealth. Example See below graph after seeing this you can decide, what should be your first priority to work on. Small amount of problems are causing larger rejections. Pareto chart will give us what should we concentrate more on to get the rejections under control.  
    • The term 80/20 states that 80% of any failures happened are due to 20% of the causes in any process. For example, in service based industry the parts returned are analysed with major categories as damage, missing, functional failure, No failure found and it is easier to find the root cause which is contributing to the major failures,
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