Add onto the conversation of Six Sigma improves the processes used to get to the final product. It repeats the process and quality checks each step to minimize variability. Based on the steps that will be changed will improve or decrease the quality of the final product. After a series of test runs, the process will become better. It will arrive at the final product quickly and improve the quality, decreasing the product's variability. Many companies that have used this have seen its benefits, such as Bank of America and Froedtert Hospital. A great example is that most mistakes come from misreading the doctors' handwriting (Thompson, 2021, pg 336)