课程: Quality Management Foundations

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Root cause analysis

Root cause analysis

课程: Quality Management Foundations

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Root cause analysis

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- When you have a quality problem, you really want the permanent solution. You want to find the source of that problem so that, if possible, it can be eliminated. Many times, we address the symptoms of a problem, but that only provides a short-term fix. You want to deeply analyze the problem so that you can discover the root cause and remove it. This will give you a permanent solution. The best tool for a root cause analysis is the five why's approach. This approach is pretty straightforward. Once you discover the problem, you continue to ask why until you find what is actually causing the problem. On average, you'll find the root cause after asking why about five times. and unfortunately, many people stop there, apply a short-term fix and think the problem is solved. You must continue to ask why until you sort through all the symptoms and get to the root cause. Here's an example. You notice that one key workstation in the factory breaks down soon after the day shift begins. It seems…

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