The Critical Starting Point For Lean Thinking Is Value Value Can Only Be Define

Lean production is lean because it uses less of everything compared with mass production — half the human effort in the factory, half the manufacturing space, half the investment in tools.

Most activities that we think of as value-creating are actually muda, and most of the rest are necessary to support the value-creating steps.

Muda is specifically any human activity which absorbs resources but creates no value.