"In a previous post, I outlined the benefits of Five Whys... Today, I want to talk about the mechanics of Five Whys in greater detail." - Lessons Learned: How to conduct a Five Whys root cause analysis

"I have come to believe that this technique should be used for all kinds of defects ... we use the defect as an opportunity to find out what's wrong with our process, and make a small adjustment. By continuously adjusting, we eventually build up a robust series of defenses that prevent problems from happening.... breaking down the "time/quality/c…

"The Five Whys technique was developed and fine-tuned within the Toyota Motor Corporation as a critical component of its problem-solving training... "by repeating why five times, the nature of the problem as well as its solution becomes clear." ... dig into each problem that arose until they found the root cause. "Observe the production floor w…