Kanban supply chain

A kanban supply chain uses kanban signals, physical cards, bins, or electronic triggers, to pull replenishment only when downstream demand consumes stock, rather than pushing goods to a forecast. Each container or card authorizes one replenishment lot, so inventory is capped by the number of kanbans in circulation and the chain self-regulates against overproduction. The method extends the Toyota Production System from the factory floor to supplier deliveries, where vendors ship against kanban triggers instead of bulk purchase orders. It underpins just-in-time operation and depends on short, stable lead times and accurate consumption data.