“DOTWIMP” is a way to remember the seven wastes of the Toyota Production System. Sometimes additional wastes are added to this list, including the waste of human potential. It’s important to understand what waste is, for several reasons:

By understanding waste, we can begin to see it in our everyday work environment
The main focus of Kaizen is the elimination of waste. The better we understand the subtleties of waste, the better we can focus out efforts.