LP denomination, appeared in the book "The Machine That Changed the World", written by James P. Womack, Daniel T. Jones and Daniel Roos (Womack et al.,1990) to describe the Toyota Production System (TPS) (Monden, 1983). The TPS had its roots on the Toyota Company in the 50’s, and his mentor was Ohno (1988). The LP has evolved into a philosophy of thinking, Lean Thinking (Womack and Jones, 1996), whose basic principles are: 1. Value, 2. Value Stream, 3. Continuous flow, 4.