One of the three elements of Just in Time Production. In the Pull system, the downstream operation takes the product it needs and ‘pulls’ it from the upstream operation. ‘Customer pull’ occurs at the end of the production process and is a signal to the producer that the product is sold and now must be replaced with a newly produced product. This method of signaling production operations through the use of visual kanban methods must be linked like a chain throughout the entire value stream. The information to produce additional parts flows back through the process as the product flows forward toward the customer. The Pull system links accurate information with the process to reduce waiting times, work in process inventory and eliminates over-production.