5 whys: The Ultimate Root Cause Analysis Tool

Origin of 5 Whys The 5 Whys method is part of the Toyota Production System. Developed by Sakichi Toyoda, a Japanese inventor and industrialist, the technique became an integral part of the Lean philosophy. “The basis of Toyota’s scientific approach is to ask why five times whenever we find a problem … By repeating why … Continue reading 5 whys: The Ultimate Root Cause Analysis Tool