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Fishbone Diagram Training, Ishikawa Training

The fishbone diagram training course explains the concept and definition of the method and then trains the students how to develop a fishbone diagram to analyze and discover the cause(s) of a problem.

What Is Fishbone Diagram?

Fishbone Diagram, aka Cause-and-Effect and Ishikawa Diagram, is one of the techniques used in root cause analysis. The diagram gets its name from Dr. Kaoru Ishikawa, University of Tokyo in 1943, who first developed and used fishbone diagram.

Fishbone Diagram Training, Ishikawa Training

Fishbone Diagram

The most benefit of the fishbone diagram is its broad application. It can be used to identify the causes of almost any problem, from mechanical failures of a product you are designing to psychological issues with your children. Moreover, it is a more structured method than some other tools used for brainstorming causes of a problem. Other advantages to this method are:

  • Straight and easy to learn
  • Good way to focus a brainstorming session
  • Effective learning method to the whole team, through preparing a fishbone diagram
  • Focuses discussion on the target issue
  • Encourages “system thinking” via visual connections
  • Puts further assessments and corrective actions in order


TONEX as a leader in quality and root cause analysis training, with more than 15 years of experience and thousands of governmental and private clients, offers you a short but practical and effective seminar that teaches you all you need to know about fishbone diagram. TONEX fishbone diagram training includes in-class activities including hands on exercises, case studies, and workshops. During the fishbone diagram workshops, attendees can bring in their own sample work and through our coaching, develop their own fishbone diagram.

The TONEX fishbone diagram seminar will teach you the techniques of developing efficient and effective fishbone diagram based on the nature of the problem you are dealing with. In this short hands-on seminar, you will learn how to prioritize the potential causes of a problem and then analyze the level of impact each one has on the result. By taking this class, you will never lose control of a brainstorming session and you always can guide your team to stay focused on the current issue till the end of the session.

There are different ways to develop a fishbone diagram and conduct it, including 6Ms, 5Whys, or 4Ps. One way is to put the categories of possible causes on the “bones” of the fish, each line representing one category, such as:

  • Man (personnel)
  • Machine
  • Methods
  • Materials
  • Measurements
  • Mother Nature (environment)

Another way would be to begin with putting down all possible causes of the problem, and then later selecting their proper categories according to what causes were identified.

The TONEX fishbone diagram training will walk you through all the approaches and help you decided what serves your goals the best. In this one-day hands-on workshop, students can bring in their own problem statement or sample issue to create a fishbone diagram specific to their problem in the class.

Who Should Attend?

The TONEX fishbone diagram training is a 2-day course designed for all the individuals who want to learn and apply simple problem analysis tools. This hands-on seminar is ideal for the senior executives, strategic leaders, managers, quality managers, product managers, manufacturing managers, R&D managers, and other supervisors and managers who lead brainstorming sessions and/or lead the problem-solving teams.

What Will You Learn?

Below are the major topics are covered in this seminar (more details can be found under the full course description):

  • Introduction
  • Fishbone Diagram Procedure
  • TONEX Fishbone Diagram Hands-On Workshop


Fishbone Diagram Training | Ishikawa Training

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