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  6. The best answer to the question has been provided by Joyal and Sourabh Nandi. Congratulations to both of them! Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.
  7. Q 298. What is the Holy Trinity for a successful project? Explain the interactions between the three elements with examples. 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 Tuesday/ Friday evening 5 PM as per Indian Standard Time. Questio
  8. Interrelationship Diagram is a tool that helps identify the drivers and effects (same as Cause and Effect). Prior to using this tool, one would need to identify the potential causes (use any of the tools - Cause and Effect Diagram or an Affinity Diagram). In C&E diagram, the relationship is well established, however, in an Affinity diagram we only get clustered categories of similar ideas. The relationships between these clusters may not be evident. Hence the need for an interrelationship diagram. Instances where this could be used 1. Establish cause and effec
  9. Interrelationship diagram is basically a cause and effect analysis. In some of the cases we have different major issues for a particular big problem/analysis. But the individual main issues/problems have no such respective defined attributes. In that case Interrelationship diagram is very much useful where we directly derive the interrelationship among all the main issues and the main issue having higher cause factor is prioritized.
  10. The Quality Tools - Interrelationship diagram The purpose of Six Sigma is to improve quality by minimizing variability. In variation reduction, several statistical methods are employed to verify the quality at different project stages. The seven management tools are used primarily for planning and managing are: The activity network diagram (AND), or arrow diagram Affinity diagram (KJ method) Interrelationship diagram Tree diagram Prioritization matrix Matrix diagram Process decision program chart (PDPC) Interrelationship diag
  11. 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
  12. Benchmark Six Sigma Expert View by Venugopal R Union of Japanese Scientists and Engineers (JUSE) came out with ‘New Seven QC tools’ in the late 1970s; and Interrelationship Diagram was included as one of them. These tools were also called as ‘Management & Planning’ tools. While dealing with multiple factors that are believed to be impacting a problem, the Interrelationship diagram serves as a useful tool to pictorially represent the 'Cause & Effect' relationships among all the factors and also help to visualize the relative extent of impact of the factors towards the u
  13. Interrelationship diagram is a visual technique which helps to understand the cause & effect relationship between various factors. This tool also helps to identify what are the various factors which helps to resolve the problem. It can be wisely used for any problem which might be related to :- 1. Client SLA not being met 2. Resolving any chronic business problem 3. Increasing throughput 4. Increasing productivity 5. Decreasing Cost 6. Reducing Attrition/Absenteeism 7. Increase profitability 8. Reduction of Losses due to waste 9. I
  14. All published answers are excellent and it is difficult to choose one over the other. All have highlighted the usage along with a unique example and hence all published answers are winners for this question!
  15. Q 297. Interrelationship diagram help discover, visualize, and communicate high-level sequential or cause-and-effect relationships. Clustering and sequencing of causes are the main steps involved in the construction of an interrelationship diagram. In what scenarios would do you find the use of the tool relevant? 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/ Pleas
  16. When I was working as maintenance head, I was facing a very critical challenge. In one of our sub assembly one small pinion was fixed at one of the end of a spline shaft with the help of a small thick washer and an allen bolt (M6). Problem – As there were alternating load on the spline shaft bolt used to get loosen and washer getting dislocated creating major accident in running machine. Or sometimes head of a allen bolt breaking and creating major accident. There used to be loss of productivity due to machine stoppage, cost of breaking spares and total used to be in the range of Rs. 70 t
  17. Morphological Matrix Morphological Analysis (MA) is coined by a Swiss-national astrophysicist - Fritz Zwicky. MA is a creative problem-solving technique for systematically structuring and exploring all the possible solutions to a multi-dimensional, complex problem and a powerful tool for generating creative ideas and designing a new product and service. For any significant part of business, success comes from agility and quality of decision-making. Such good decision-making leads to performance enhancements by diminishing rework and driving benefits to the bottom line faster. Lean Six Sig
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  19. Morphological Matrix is a good tool for generating a list of ideas and using them as a means to tackle your problem. Often there can be many ideas that can provide various solutions to a problem but we might be lacking the knowledge as how to provide. This is where this tool helps in. What is to be done ? The first step is to define an attribute/characteristic which is vital to influence the problem at hand Second step is to define the values/components for each of the attribute/characteristic The third step is to randomize the values picked in each of the attri
  20. In the human history, most of the inventions are happened in unexpected situations. Velcro the material used now in cloths idea came from burdock burrs that fixed in cloths of Swiss engineer George de Mestral Alps while he gone for hike in Alps. It became popular after it was later adopted by NASA, and became commonly used on sneakers, jackets, and so much more. Microwave oven invented by Percy Spencer an engineer, when he was working on a radar-related project. While testing a new vacuum tube, he discovered that a chocolate bar he had in his pocket melted more quickly than he w
  21. Morphological matrix is a technique which were different alternatives are provided to a business problem Step 1 – Select the required Attribute :- list down all the critical attributes which are there are list the same down in a column Step 2 – The next step is to make list of all the possible component for each attribute . Step 3 – Combine components with Attributes and make as any combination as possible .the same can be done using brainstorming with the team and coming out with the best possible solution .Each of the component which has been identified by the team can be loo
  22. While all the published answers are correct, the best answer has been provided by Sourabh Nandi for describing the effect, its causes and ways to overcome it and by Aritra Das Gupta for highlighting three methods that a supervisor can use. Prakash Mesta's answer is a must read for the linkage of Dunning Kruger effect with Lean Six Sigma.
  23. Q 296. What is a Morphological Matrix and how can it be used for problem solving? 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 Tuesday/ Friday evening 5 PM as per Indian Standard Time. Questions launched on Tuesdays are open till Frida
  24. 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
  25. Dunning Kruger Effect : ▪ Type of cognitive bias that causes people to overestimate their knowledge ▪ How good are you with money? What about reading people’s emotions? How healthy you are, compared to other people you know? Knowing how our skills stack up against your competitor is useful in many ways. As per psychological research we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect ▪ This effect explains why more than 100 studies have shown that people dis
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