Training Within Industry (TWI) is a dynamic program of hands-on learning and practice that teaches essential skills for supervisors, team leaders and anyone who directs the work of others, regardless of the industry sectors in which they work.

Training Within Industry was developed in the United States in the early 1940’s to boost World War II industrial production and it was an unqualified success. After the war, the program was exported to Japan, where it was used extensively to rebuild that country’s industrial base. Sine the early 1950’s, TWI was used to train employees in the Toyota Production System.

Still in use in Japan, TWI is now being used by American manufacturing companies to sustain the gains made by in their Lean Enterprise and Six Sigma Continuous Process Improvement programs.