Comments on: Problem Solving using the 5 Whys https://conceptboard.com/blog/problem-solving-using-5-whys/ Fri, 19 Jan 2024 13:26:16 +0000 hourly 1 By: Stephen Downes-Martin (www.downesmart.com) https://conceptboard.com/blog/problem-solving-using-5-whys/#comment-217699 Tue, 05 Jul 2022 15:26:37 +0000 http://blog.conceptboard.com/?p=175574895#comment-217699 (1) The example solution is not a solution, it is the recognition that something new needs to happen, followed by requirements on how that is to be achieved.

(2) A single thread down (one answer per question) is insufficient for most difficult problems (i.e. ones that require a 5-why’s!) Each question will generate several answers, each of which is drilled down on. Then answers to different questions that are the same are linked into a lattice. If you are lucky it all comes together into a single item at the bottom of the diagram. One ends up with several dominant threads from top to leaf nodes, each of which has to be dealt with.

(3) The 5-why’s identifies several possibly independent causes. These must be dealt with using a problem solving method — which 5-why’s is not. It is a problem identification method.

]]> By: Dr Gurnam Singh Sagoo https://conceptboard.com/blog/problem-solving-using-5-whys/#comment-216271 Fri, 20 May 2022 06:47:43 +0000 http://blog.conceptboard.com/?p=175574895#comment-216271 I disagree with your statement “Six sigma is all about waste reduction, process optimization and quality improvements.”

Six-Sigma is all about “variation reduction” using statistical tools and techniques and pioneered by Motorola.

Lean is all about “Waste reduction” using Lean tools and techniques as part of Lean Manufacturing/the Toyota Production System developed by Toyota.

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