Determining the Relevance of a Problem with an Ishikawa Diagram

Cause and Effect Analysis
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Best Practices
Leo van Kampen, Netherlands

Determining the Relevance of a Problem with an Ishikawa Diagram

I use the fishbone to determine the relevance of a problem. On the upper side of the fishbone I put the positive characteristics (what are the benefits if the problem is solved). On the lower side the negative (what are the cost elements). I rate all characteristic on a scale from 1-5. Also sub branches are rated. Then I divide the positive by the negative. If the fraction is larger then 1 the problem is relevant if it smaller then one the subject is not that relevant. Relevance is translated to prioritizing. If there are no negative elements then the denominator is infinite small and the fraction becomes infinite large. Mostly quick wins. If there are no positive characteristics the numerator becomes infinite small and the fractal will be close to zero. No relevance.

  Mauricio, Peru
 

Interesting

I am going to try this in my next fishbone...

  Pamela, Guatemala
 

I like it

The only thing that worries me, is how avoid the subjective rate, I am not sure that I will do it only by numbers, when ...

  A. J. Jegadheeeson
 

Good Idea

Only doubt I have is we construct the causes and effects diagnosis, based on possible causes. It is like listing out the...

  ANUJ KUMAR SHRIVASTAVA
Manager, India
 

Refinement of Suggested Approach to Calculate the Relevance of a Problem

Respected Sir, Ratings on the basis of 1-5 may easily differ from person to person. The technique you suggest is useful...

 

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