Before revision: The term Lean was coined in 1988 by American businessman John Krafcik in his article "Triumph of the Lean Production System ", and defined in 1996 by American researchers James Womack and Daniel Jones to consist of five key principles: "Precisely specify value by specific product, identify the value stream for each product, make value flow without interruptions, let customer pull value from the producer, and pursue perfection."
After revision: The term Lean was coined in 1988 by American businessman John Krafcik in his article "Triumph of the Lean Production System ," and defined in 1996 by American researchers James Womack and Daniel Jones to consist of five key principles: "Precisely specify value by specific product, identify the value stream for each product, make value flow without interruptions, let customer pull value from the producer, and pursue perfection."