𝗛𝗼𝘄 𝘁𝗼 𝗨𝘀𝗲 𝗙𝗶𝘀𝗵𝗯𝗼𝗻𝗲 🐳🐟𝗗𝗶𝗮𝗴𝗿𝗮𝗺𝘀 𝗳𝗼𝗿 𝗥𝗼𝗼𝘁 𝗖𝗮𝘂𝘀𝗲 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀?

The goal of Fishbone Diagrams is to help you move beyond symptoms to uncover the root cause of a problem.

In Pictorial view The problem is the fish’s head, with the causes extending to the left as Fishbones.
𝗛𝗼𝘄 𝘁𝗼 𝗨𝘀𝗲 𝗙𝗶𝘀𝗵𝗯𝗼𝗻𝗲 𝗗𝗶𝗮𝗴𝗿𝗮𝗺𝘀?


𝗦𝘁𝗲𝗽 𝟭: 𝗗𝗲𝘁𝗲𝗿𝗺𝗶𝗻𝗲 𝘁𝗵𝗲 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝘀𝘁𝗮𝘁𝗲𝗺𝗲𝗻𝘁

Let’s say that you experience prolonged changeovers when running a particular product.



𝗦𝘁𝗲𝗽 𝟮: 𝗕𝗿𝗮𝗶𝗻𝘀𝘁𝗼𝗿𝗺 𝗽𝗼𝘁𝗲𝗻𝘁𝗶𝗮𝗹 𝗰𝗮𝘂𝘀𝗲𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝘀𝘁𝗮𝘁𝗲𝗺𝗲𝗻𝘁

Let’s say that you identified the following causes for the problem:

📌 No/poor work instructions
📌 Missing tools for setup
📌 Operators arrive late
📌 Lack of training in setting up the machine
📌 Raw material not on hand in a timely manner
📌 Gauge errors



𝗦𝘁𝗲𝗽 𝟯: 𝗠𝗮𝗽 𝘁𝗵𝗲 𝗽𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝘁𝗼 𝘁𝗵𝗲 𝘀𝗶𝘅 𝗰𝗮𝘁𝗲𝗴𝗼𝗿𝗶𝗲𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗙𝗶𝘀𝗵𝗯𝗼𝗻𝗲 𝗗𝗶𝗮𝗴𝗿𝗮𝗺

Use the Following six categories

1. Method
2. Equipment
3. Man
4. Environment
5. Material
6. Measurement

to map the causes to the diagram.As Shown In Image.


𝗗𝗲𝘀𝗰𝗹𝗮𝗶𝗺𝗲𝗿:- In a practice, the diagrams are far messier and larger. With probably more causes than six. And some of them are more important than others.


𝗧𝗶𝗽: Once you have identified potential causes, a great next step is to use 𝟱 𝗪𝗵𝘆𝘀 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 to dig deeper.



𝗪𝗵𝗮𝘁 𝗻𝗲𝘅𝘁?

At this point, your team has brainstormed potential causes for the problem statement.

You have considered each of the categories and feel that you have a complete list.

Now it is time to use this input to move towards implementing a sustained solution.



𝗠𝗮𝗶𝗻 𝗧𝗮𝗸𝗲𝗮𝘄𝗮𝘆📝📝


The Fishbone Diagram is an essential tool for all manufacturing teams who want to improve their production process. It provides an easy framework to further your understanding of problems in your production process.

"Remember, while Six Sigma principles can be useful in everyday life, it's important to adapt them to the context and scale of your personal goals and activities."

VinayChandran

Lean Six Sigma Knowledge

A Small step towards Learning

PS: The Article written above is from the learnings from various books on Lean & Six Sigma. Due credit to all the Lean & Six sigma thinkers who have shared their thoughts through their books/articles/case studies

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