How Do You Make A Fishbone Diagram?

Whether the students have loved it or hated it, but brainstorming is what all have done ample time in their respective lives. Suppose people have been wondering what a fishbone diagram is. In that case, it is a procedure that has aided millions of people in brainstorming the potential problems for a difficulty or when the team’s thought method leads to coming into ruts.

Fishbone diagram is further recognized as a cause-and-effect description or Ishikawa diagram, which was incepted in 1943 by Dr. Kaoru Ishikawa at the University of Tokyo. Following the late 1960s, Ishikawa designs have accommodated many experts in problem-solving. 

A Fishbone diagram is a process that assists the manager to keep track of the various reasons for inadequacies, disparities, shortcomings, or failures. Dr. Ishikawa said, 

“Think of at least four factors which influence your problem. See if a shift in one of these causes can give you a different effect to explore.”

There is a purpose why this diagram is identified as a fishbone diagram, as it seems similar to a fish’s skeleton with the difficulty at its peak and the grounds for the problem feeding into the spine. The usual apparent uses of fishbone diagrams are commodity design and quality error interception, managing the likely reasons for an overall effect. Helps quickly categorize the ideas into useful sections; this case outline tool is one of the seven essential quality tools. Furthermore, the fishbone layout also helps answer questions like the potential root cause of the problem or the process input that showcases the source of variability in the process output.

A fishbone diagram’s different variations are CEDAC ( known as the cause-and-effect map with the extension of cards), root process fishbone, time-delay fishbone, enumeration diagram, desired-result fishbone, and reverse fishbone diagram as per the professionals delivering Management assignment help in Australia.

Make a fishbone diagram – in Just 5 Steps!

Below are five significant steps involved in making a fishbone diagram:

  1. First and foremost, leaners need to know the exact problem statement or be precise; they need to see its effect. Now, this has to be mentioned at the mouth of the “fish.” Herein, they have to be very clear and specific about the issue. In this step, one has to define the problem in terms of a solution.
  2. The second step is to know the different chief classes of the causes of the problem. These will be mentioned as the branches from the central arrow at the spine. The top classes include equipment or supply factors, environmental factors, guidelines/rule/process factors, and staff factors.
  3. The third step is about brainstorming all the possible reasons or causes of the issues. It is significant to answer the question – “Why does this happen?” After getting the answer or answers, you have to note the essential issues as a branch extending from the concerned class on the diagram. This can be mentioned in different spaces on the diagram, even if they relate to many different categories and not one. 
  4. Now, the fourth step is to know, “Why does this happen?” This question is to be asked for each cause that they have written in the fishbone diagram. It’s time to mention sub-causes branching off the cause branches.
  5. The last step is to continue analysing the “Why?” This step will help in prompting insightful levels of reasons. And then they will have to keep determining them according to the related causes. This will help them know the root causes and then address the same to avert future problems.

Benefits of using a fishbone diagram

There are several advantages of practicing a fishbone design or Ishikawa diagram. According to the experts, it is used mainly when it is the requirement to identify the source objective of the rising difficulty. Not just this, it is also to be noted here that the diagram is also used as the first phase during the screening process. Anyone then uses this by customizing as per the given circumstances, thereby improving the team.

The benefits of practicing a fishbone diagram are:

  • Fishbone diagram helps in including metrics, but it is principally seen as a pictorial representation of critical thinking.
  • It is not restricted to a particular set of people; instead, of educates the whole team by involving workforce problem resolution.
  • A Fishbone diagram is a simple, easy, and organized way to reach the root cause of a particular issue while saving time. 
  • With the Fishbone Diagram usage, one can explore the root cause and record them by organizing the discussion and focusing on the existing issues.
  • This way helps in promoting “System Thinking” with the usual visual linkages.
  • The method of making a Fishbone Diagram helps in prioritizing corrective actions and further analysis.

Here are the four kinds of fishbone diagrams!

The existing varieties of fishbone diagram are discussed by our assignment help experts:

  • Simple Fishbone Diagram: Simplistic fishbone diagram is the primary type that has no destined associations or kinds of problems.
  • 4S Fishbone Diagram: This kind of fishbone diagram organizes data about probable factors or reasons into four general sections: Suppliers, Surroundings, Systems, and Skills.
  • 8P Fishbone Diagram: This type of fishbone diagram uses eight categories: Price, Place, Policies, Product, People, Processes, and Promotion.
  • Design of Experiments Fishbone: This type helps manage evidence about possible causes of acknowledgment variables into Controllable, Held-Constant, Uncontrollable, and Blockable Nuisance categories.
  • Man, Machines Materials Fishbone: It includes the kind of fishbone diagram mostly used in manufacturing, supporting determining causes of problems into categories such as Machine, Man, Materials, Methods, Measures, and Environment.

Let’s sum up!

All-in-all, the fishbone diagram helps in brainstorming within a well-defined structure. A particular fishbone diagram begins with the fundamental point located at the far-right corner of the diagram. This is then followed by a series identified since the “spine,” drawn accurately to the left while adding various categories or affinities or the sorts of causes, off shooting both above and below it. This entire procedure keeps on going like this until the complete brainstorming session. 


Wajazali is a passionate writer and blogger who has been writing about the latest developments in the field of technology for over 3 years. His articles are published on, which he administers as well. Wajazali is also involved with various other projects to help people learn how to manage their own online marketing campaigns.
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Murtaza Ali

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