Videos A Brief History of T.W.I. (Training Within Industry) View Video Crisis Drives Development of TWI This visually entertaining and informative video created by acclaimed artist Stephen Lentz, explains the origins of TWI and its structure, who developed it, why it was needed and why it was so effective. It touches on the forerunner concepts of TWI like respect for the worker and the four-step method, along with the global disruption that accelerated TWI’s use in American production facilities.