Training within Industry – or TWI for short – was a US program during World War II. It significantly improved industrial production and helped the Allies to win the war. While the ideas date to the 1940s, they are still very relevant. In my view, they are pure gold if you have to manage a shop floor. It is to me the best overarching system for training and managing workers, and it significantly influenced Toyota.
While technology has changed a lot since 1945, people have not. The methods of TWI still work, and can really help you to improve. Even better, the original US government documents from 1945 are all in public domain. Let me introduce you to TWI. This is the first in a series of five posts on TWI. Continue reading Training within Industry – TWI – Oldies but Goldies→
In a previous post I wrote about the relation between utilization, fluctuation, and waiting time, and its approximation by the Kingman formula. Let me show you a quick and easy dice game where we simulate a supermarket checkout to let participants experience the effect of utilization, fluctuation, and the (worse) combined effect of both. Continue reading A Small Dice Game for the Kingman Formula→
One of the famous teaching methods by Taiichi Ohno is the chalk circle. The method itself is simple. A circle is drawn on the shop floor near a point of interest. A disciple is put in the circle and told not to leave it until he is picked up again by the teacher.
One popular approach to battle waste is to streamline changeovers. Changing machines from one setup to another is often a time-consuming exercise. Hence, in lean manufacturing, reducing changeover times is a well-known method for improving efficiency. This post will show a number of examples where these quick changeovers (also known as SMED) can be practiced in an unusual environment. Continue reading SMED – Creative Quick Changeover Exercises and Training→
Mistake proofing (or Poka Yoke in Japanese) is one important way to avoid waste in lean manufacturing. In this post, I will present a small game that can be used to teach the basics of poka yoke easily and quickly. The game is based on Kinder Surprise eggs made by Ferrero, also known as a Kinder Egg. These eggs are available almost anywhere – except in the US, in which case there are some alternatives. Continue reading Poka Yoke Training – Simple Mistake Proofing Game→