Lean manufacturing practitioners often talk about three different kinds of waste: muda, mura, and muri.
This can get a little confusing, because lean experts ALSO talk about seven or eight kind of wastes, but when they're talking about that, they're talking about seven or eight different types of muda (muda is a Japanese word that means something like futility, uselessness, or wastefulness). Please see our The 7 Types of Waste in Lean Infographic for more about the different types of muda.
But when people in lean talk about different types of waste other than muda, they are talk about mura and muri. Admittedly a bit confusing, yes, but are you with us now?
If so, we invite you to check out and then download our free 3 Types of Waste (Muda, Mura, and Muri) Infographic below for your workplace continuous improvement efforts.