Need some assistance in learning and making your own fishbone diagram? This fishbone diagram, also known as Ishikawa diagram, is causal diagrams created by Kaoru Ishikawa that show the causes of a specific event. This diagram is known as a fishbone diagram because of its shape which is similar to the side view of a fish skeleton. Check out the templates of the Ishikawa diagrams in the following images.
Ishikawa diagrams were popularized in the 1960s by Kaoru Ishikawa. Since Ishikawa diagrams are a causal diagram, each cause or reason for imperfection is a source of variation. Causes are usually grouped into major categories to identify and classify these sources of variation. This causal analysis is intended to reveal key relationships among various variables, and the possible causes provide additional insight into process behavior.
As you can see on the examples and templates above, the defect is shown as the fish’s head, facing to the right. The left side of the diagram is where the causes are listed. The causes are broken out into major cause categories. The causes you identify will be placed in the appropriate cause categories as you build the diagram. The right side of the diagram lists the effect. The effect is written as the problem statement for which you are trying to identify the causes.
Ishikawa diagram can be used for preventive identification and elimination of possible causes of the problems. This diagram is also a great way to look for and prevent quality problems before they ever arise. These diagrams are provided solely to help you learn about the fishbone diagram. If you want to use these diagrams as a reference or study aid, just click on the image and make sure to download the image! Check back soon for more educational diagrams!
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