Articles

Cause and effect diagram (CED) I Lean Six Sigma I Best Lean Six Sigma Course


 

Cause and effect diagram (CED)

 

It is an easy yet powerful graphical tool used for identifying the causes of a problem or effects. It helps to define and analyze the root causes that affect a process which leads to a certain problem.

This diagram was developed by Kaoru Ishikawa, a famous Japanese consultant in 1950. Hence, it is also known as the Ishikawa diagram.

It is also known as the fishbone diagram because the completed graphic resembles the bone of a fish. It is most useful when the team approach is used to identify a problem. In a team, there are different opinions to the root cause of the problem. This diagram helps to capture the different opinions and stimulates brainstorming on the root causes of the problem. It helps the team to organize the causes behind the problem into categories and helps them not only to proceed systematically but also helps them to reach a common understanding of a complex problem.    

It is important to understand that the various tools in Six Sigma don’t work in isolation; rather, they are dependent on each other in some ways.

The use of this diagram is not restricted to one particular industry; it has a wide and varied area of application. It finds its application in manufacturing, marketing, sales, and administration departments. It also finds its use in research, innovation, engineering and project management, and many more.

The video goes on to explain the construction of the Cause and Effect Diagram in easy steps 

The problem statement or the opportunity that we are trying to improve forms the head of the fishbone. A straight horizontal line is drawn from the head, the ‘bones’ coming off this line represent the various categories of the causes of the problem. Often the causes are categorized under people, equipment, materials, external factors, etc. Many times, the 6Ms are used as the categories for the bones when determining the root cause of a problem in the manufacturing industry and 4Ps in the Service Industry.  However, these categories are not restricted only to the ones mentioned above, and they can also be modified or interchanged according to a particular situation. The team members can delve deeper into the problem to reach the root cause of the problem by applying the 5 Whys.

Ultimately the tool helps to determine the root causes of the problem in the process which enables us to improve upon those causes to reach the desired outcome and improve the process.

 

Posted on 26 June, 2019

2084 times 2

Categories : Lean Six Sigma White Belt Course

Comments so far.. Add new comment

Amit 30/10/2019

Incredible!

Shaan Patra 08/07/2019

Thank you for developing this course!!

Related Articles

Cycle Time l A Key Metric for Profitable Business and Happy Customers

Cycle Time

A Key Metric for Profitable Business and Happy Customers. A very important concept when we are working on process improvements.

What is the first question you ask as a customer when you order a product or service?

It’s “How long it will take?”

If a business cannot answer this question and deliver on promised t...

Sure shot Methodology for Business Success

Sure shot Methodology for Business Success

Using deceptively simple and incredibly powerful lean principles
 

Service operations comprise more than 70% of the world GDP and growing rapidly. Even within manufacturing companies, it’s common to have only 20% of product prices driven by direct manufacturing labor—the oth...

World-Class Performance l Value Discipline Model

World-Class Performance – Is it Achievable?

 

World-class performance, very common phrase indeed, used often, we think we understand its meaning and nothing is intriguing about it.

But I Disagree, in my opinion, World-class performance is such a common word used on every marketing material, I think it’s often misquoted and not unde...

Know about Janam Sandhu

Janam Sandhu (Six Sigma and Management Guru) is here to teach you Lean and Six sigma in an easy to understand format and I assure you if you follow my videos and blogs you will be able to understand and implement these techniques with ease.

When I look at the six sigma and lean I feel they are such easy and wonderful techniques which have been developed to help you carry your business in simple and efficient manner but when I look at current trends and the way lean and six sigma training being carried out, I feel their only mission is to complicate things.

Read more about us