Question 1

What is a fishbone diagram?

Accepted Answer

A fishbone diagram is one of the 7 QC Tools, also known as a cause-and-effect diagram. It is a tool for visually organizing the relationship between a specific problem (effect) and its causes. It got its name because it looks similar to a fish skeleton. It is widely used in problem solving and quality control, and is useful for systematically identifying causes.

Question 2

How do I use a fishbone diagram?

Accepted Answer

A fishbone diagram consists of the following elements. Head: The "head" on the right side of the diagram describes the "problem" or "effect" you want to solve. Backbone: The thick line extending toward the head. Categories (main bones): The large bones extending diagonally from the backbone, representing the "categories" of causes. (e.g., "People," "Machine," "Method," "Material") Causes (sub bones): The smaller bones extending from each main bone, describing specific "causes."

Question 3

How do I edit the problem (head)?

Accepted Answer

In the input field of the "Problem (Effect)" section, enter the central problem or theme you want to analyze. Your input is reflected in real time on the "head" part of the diagram.

Question 4

How do I add a main bone (category)?

Accepted Answer

In the input field of the "Category Management" section, enter a category name (e.g., "People," "Equipment"), then click the "+" button or press the Enter key. A new main bone will be added to the diagram.

Question 5

How do I add a sub bone (cause)?

Accepted Answer

In the "Cause Management" section, first select the category to which you want to add a cause from the dropdown. Next, enter a specific cause in the input field and click the "+" button to add a new sub bone to the selected category.

Question 6

I want to delete an item I added by mistake.

Accepted Answer

Click the trash can icon (🗑️) on the right side of each item shown in the "Category Management" or "Cause Management" list to delete that item. When you delete a category, all causes belonging to that category are also deleted automatically.

Question 7

Is there an auto-save feature?

Accepted Answer

Yes, there is. Your chart data is saved automatically to your browser's local storage. When you reload the page, or close and reopen your browser, you can restore the saved data. You can also revert to the default data by pressing the reset button at the top-right of the data input area. Local storage data is saved only in your browser and is not shared with other users. If local storage is disabled in your browser settings, the auto-save feature will not work. Clearing your browser cache will also delete the saved data.

Question 8

How can I save the chart as an image?

Accepted Answer

Click the "Download Image" button below the preview area to download your chart in PNG/JPEG/SVG format with your chosen quality. If you want to change the aspect ratio, drag the handle at the bottom-right corner of the preview frame to adjust it.

Free Fishbone Diagram Maker

Frequently Asked Questions

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Free Fishbone Diagram Maker

Frequently Asked Questions

Q.What is a fishbone diagram?

Q.How do I use a fishbone diagram?

Q.How do I edit the problem (head)?

Q.How do I add a main bone (category)?

Q.How do I add a sub bone (cause)?

Q.I want to delete an item I added by mistake.

Q.Is there an auto-save feature?

Q.How can I save the chart as an image?