![]() In the example given above, a cause might be, “More PTO taken on Mondays” or “Frequent late arrivals by patients on Mondays.” It is often helpful to ask yourself and your team why questions while focusing on the problem statement. Remember, conflating the effects of the problem with its cause won’t help you develop solutions. ![]() The head of the fishbone should be filled in with a problem statement such as, “Wait time for patients is 20 minutes longer on Mondays on average.” Make sure the information placed on the diagram remains focused on the causes of the problem, rather than just the symptoms. How to Get the Most Out of Your Fishbone Diagram Exercise Reduces potential for tunnel vision on one cause.Allows for exploration of multiple underlying causes.Encourages focus on solutions as causes are grouped together.Visual representation of relationships between causes.There are many benefits to using the fishbone diagram, but these are some of the most recognizable advantages to the graphical method: This tool works well in a group setting as it allows you to capture several causes and represent these ideas visually in an organized way. The fishbone diagram can be used as a root cause analysis tool, allowing you to identify and sort possible causes. You may also hear the diagram referred to as the Ishikawa Diagram, Cause and Effect Diagram, Herringbone Diagram, Fishikawa, or 4M/5M. This method dates back to the 1960s when it was developed by Japanese organizational theorist, Kaoru Ishikawa. Possible causes are grouped into each of these categories and are represented as horizontal lines, branching off from the main vertical line. Categories of each problem (such as policies, manufacturing, suppliers, etc) are drawn as diagonal lines from the spine of the fish. The fishbone diagram makes a fish’s skeleton shape with the failure or problem at the head. You might be wondering where fishbones come into play here and what they have to do with cause and effect. By understanding the underlying factors which have led to a failure or issue, you can better develop a strategy to eliminate or mitigate them. But what is causing it? The cause and effect diagram can help you identify possible causes and perform effective root-cause analysis.
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