Taiichi OhnoToyota Production System, 1978
Any activity consuming resources without creating customer value — classically seven forms: transport, inventory, motion, waiting, overproduction, overprocessing and defects.
Womack & JonesLean Thinking, 1996
Added the eighth waste: unused human talent and creativity — goods and services that don't meet needs are waste of the most fundamental kind.
The EclipseFrontiers® LensWaste hides best inside 'the way we've always done it.'