A means of communicating need for products or services. It is generally used to trigger the movement of material where one-piece flow cannot be achieved, but is also used to "signal" upstream processes to produce product for downstream processes.
Literally translated from Japanese the meaning is ‘billboard' or ‘sign'. The approach uses standard containers or lot sizes with a single card attached to each. Production work centres signal with a card that they wish to withdraw parts from a ‘feeder' operation.
A signaling device that gives instruction for production or conveyance of items in a pull system. Can also be used to perform kaizen by reducing the number of Kanban in circulation, which highlights line problems.