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Root cause analysis is a fundamental process in identifying and addressing the underlying reasons behind a problem. It’s a critical tool in quality management, process improvement, and problem-solving across various industries. One of the most popular methodologies used for root cause analysis is the “5 Whys” diagram. In this article, we’ll delve into the 5 Whys methodology, its history, how it works, and its real-world applications. Introduction to Root Cause Analysis Root cause analysis is a structured method used to discover the primary cause of a problem or issue. Instead of merely addressing the symptoms, it aims to identify the underlying factors that lead to these issues. This method helps in preventing recurrence and implementing effective solutions. The 5 Whys Methodology The 5 Whys methodology is a simple yet powerful technique for root cause analysis. It involves repeatedly asking “why” to delve deeper into the problem. By doing so, you can uncover the root cause behind ea