Taiichi Ohno originally developed the seven wastes (muda), which are used in lean to describe non-value-added activity. The focus in a lean thinking paradigm is to eliminate lean waste, or muda (the Japanese word for “waste”).
Who is "TIM WOOD?" The Seven Wastes of Lean Manufacturing include:
Transport Inventory Motion
Waiting Over-Processing Overproduction Defects
"Muda (無駄) is a Japanese word meaning "futility; uselessness; wastefulness", and is a key concept in lean process thinking, like the Toyota Production System (TPS) as one of the three types of deviation from optimal allocation of resources (the others being mura and muri)."