The Ishikawa Diagram is a visual framework that helps teams systematically identify and present all possible causes of a specific problem. It is structured to resemble a fish's skeleton, with the problem at the head and the potential causes extending as ribs from the main bone. This method encourages thorough analysis and helps teams focus on different aspects of the problem, including people, processes, and technology, facilitating a comprehensive exploration of potential root causes.
Define the problem and place it at the head of the diagram. | Identify the major categories of causes and label them on the main branches. | Brainstorm all possible causes of the problem and add them as smaller branches. | Analyze the diagram to identify the most likely root causes. | Use the findings to develop action plans to address the root causes.
Clearly define the problem before starting the diagram | Involve team members from various functions for diverse perspectives | Regularly review and update the diagram as new information becomes available
Encourages systematic problem analysis | Facilitates team collaboration and consensus | Visually maps the relationship between effect and causes
Can become overly complex with too many causes | May not provide solutions, only identifies potential causes | Requires thorough understanding of the problem and its context
When identifying root causes of a specific problem | In quality control processes
When the problem is already well understood | For simple problems that do not require detailed analysis