Loosely translated from Japanese, the Andon is a torch or light signal. In Lean management and Lean manufacturing we use it for efficient and effective communication. In some cases it has three colors (red, yellow and green) and in some cases only one. The Tokyo based barber in the video uses Andon to signal waiting time. IKEA self checkouts use it to signal the following: Which self checkouts are vacant? Which self checkouts are occupied? Which self checkouts are experiencing problems and...

Origin The G21 project was a largescale project that enfolded at Toyota in the 1990’s. The aim was to navigate Toyota through the advent of the new century, by creating a vehicle (catalogue) that could withstand the challenges of the upcoming new century, including ever growing resource scarcity. Many of you have seen one of the most prominent fruits of this project on the road. Perhaps, you or someone you know, even drives it. We are of course referring to the Toyota Prius. Less well...

The following info-graphic explains the relationship between correlation, single OLS regression and multiple OLS regression. We often go through all three, starting with correlation and ending with multiple regression.