How the Ishikawa diagram helps in problem solving.

The Ishikawa diagram's main purpose is to help work teams identify the root causes of a given problem.

Therefore, it consists of a main axis that represents a problem in question, and several branches that symbolize the possible causes of the problem.

Now that the main objective is understood, let's explain what an Ishikawa diagram is and how this tool can help solve a company's problems.

What is an Ishikawa diagram?

The Ishikawa diagram, also known as the fishbone diagram or cause-and-effect diagram, is simply a graphical tool that helps identify the causes of a given problem.

Developed by Japanese engineer Kaoru Ishikawa in the 1960s, the diagram emerged as a way to help companies improve the quality of their products and services.

The Ishikawa diagram is shaped like a fishbone, representing the categories of causes that can contribute to a given problem.

Therefore, these categories can vary depending on the problem at hand, but they typically include people, processes, equipment, materials, the environment, and policies.

And the possible causes are listed along their respective categories, thus forming the "meat" of the fish.

By visualizing the possible causes of a problem in an Ishikawa diagram, it is possible to identify the relationships between them and get to the root of the problem.

In this way, teams are able to develop effective solutions and create preventative methods for similar problems that may arise.

The Ishikawa diagram is a collaborative tool that can be used by your team, encouraging group participation in identifying the root causes of a problem and finding solutions.

Therefore, the method is used by various companies and in several sectors, such as industry, health, education, and business management.

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What are the categories?

The main categories that can be used in an Ishikawa diagram are known as the 6 Ms.

• Machines: Regardless of the type of work performed, lack of equipment maintenance can be the cause of many problems.

Therefore, it is very important to supervise all equipment to ensure that its operation is in compliance.

• Materials: This problem is related to physical and chemical components during the process.

Therefore, keeping track of material usage is extremely important.

• Labor: This M relates to the attitudes of the employees in question, since humans are prone to errors.

Some employee behaviors can cause problems, such as performing tasks hastily, recklessly, or even lacking the necessary qualifications.

• Environment: In this case, the problem may be related to the internal or external environment.

External factors include pollution or climate change, for example.

Internal environmental problems can include poorly utilized space, excessive noise, and others.

Therefore, ideally the work environment should be favorable to the entire team, consequently resulting in better performance.

• Measurements: This category can be seen as the most challenging, since it deals with measuring, controlling, and monitoring processes.

Therefore, when used incorrectly, it can cause overload and hinder the performance of certain functions.

• Methods: This M is nothing more than procedures and methods used during the activities.

It represents how you plan the development of your activities and control everything that is happening.

These categories are flexible and can be adapted to suit each type of problem being addressed.

How to use the Ishikawa diagram?

As you can see, the diagram's composition is simple and easy to create.

Therefore, follow the step-by-step instructions and discover how to apply the Ishikawa diagram.

1. Define the problem.

At this point, we will think about the shape of a fish, starting with the head, since it will represent the problem that will be analyzed.

Create a precise and objective definition, gathering as much information as possible about the problem, such as who was involved, how and when it happened.

And then, give your problem a name.

2. Identify the categories that may be involved.

So now you will draw a horizontal line starting from the fish's head, and then draw transverse lines that will represent the categories into which the causes fit.

At this stage, depending on the situation, you can use the 6 Ms, or some of them, to help define the categories.

3- Discuss with the team  

Gather your team to help in creating the Ishikawa diagram, because after it's finished, a discussion about the problem and possible solutions will be necessary.

4- Diagram Analysis

This is the final stage, and your diagram is now complete, containing all possible causes for the generation of a root problem.

Now you and your team can focus on actions to correct the root causes that led to this problem, and have a good organizational culture It helps a lot at this time.

Depending on the complexity of the problem, the Ishikawa diagram will allow you to investigate the most likely causes in more detail.

Why use the Ishikawa diagram?

A great answer to this question is that you should use this tool because of its ease of use.

Since the Ishikawa diagram facilitates team organization when discussing the root problem, its visualization is simple and makes discovering the main issue easier.

Therefore, once all possible causes have been identified, the team can then organize them and analyze the problem, seeking specific solutions for each cause.

It's important to remember that the main focus is on developing an effective solution to the root of the problem, and not just creating a "band-aid" fix.

Furthermore, the Ishikawa diagram can be used in conjunction with other tools, such as the PDCA cycle, for example, which aims to plan, do, check, and act on the proposed solutions to solve a problem.

Conclusion:

The Ishikawa diagram is a powerful tool that aids in problem-solving because it helps visualize all possible causes of a problem and organize them into categories.

Therefore, it helps in the development of effective and lasting solutions.

However, it's important to remember that success in problem-solving depends on correctly identifying the root cause of the problem, so evaluate all possibilities to achieve a good result!

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Given that

I am a member of the O Administrador team and I produce content about career, personal finance, financial education, productivity, and professional development. My goal is to share clear and practical information to help readers with their day-to-day decisions.

May 4, 2023