![]() ![]() Then, your target (or mean) is to have a width of around 10.35 inches. Source: Lean Six Sigma Definitionįor example, you manufacture a product that must have a thickness between 10.32 and 10.38 inches. At the six-sigma level, the likelihood of errors is 3.4 per million products. Six-sigma is the target limit where you need to keep your process in to reduce the probability of any defects. In business terms, you can think that it is the process deviation from your target where one sigma means you are a single standard deviation from the target. The name comes from the Greek symbol “sigma” or “σ,” a term that defines the deviation from the mean in statistics. It offers statistical methods that reduce variance and help identify the root causes of errors for more effective and efficient processes. Six Sigma is a set of data-driven quality control techniques that aims to improve business processes by reducing the likelihood of defects and reducing the variations in processes. In this article, we provide a comprehensive guide on Six Sigma and why it is still relevant for process improvement. Between many quality control approaches, Six Sigma has become a popular technique that applies to a wide range of industries, besides manufacturing. Considering today’s complex processes and the advances in the latest technology, Six Sigma is still a relevant approach for process improvement. Since the early days of manufacturing, businesses look for ways to improve the quality of their processes and reduce the number of defective products. ![]()
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