What is a "kanban" system?

A kanban system is fundamentally a scheduling system that supports lean manufacturing and just-in-time (JIT) production practices. The core essence of kanban lies in its ability to visualize workflow and manage inventory levels effectively by signaling the need for replenishment. In a kanban system, visual cues—often in the form of cards—are used to indicate when new materials should be produced or ordered, thereby minimizing waste and enhancing efficiency.

This system aligns closely with the principles of lean methodology, which focuses on reducing waste and improving process flows. By managing production at a pace that meets actual demand rather than forecasted demand, a kanban system enables organizations to optimize their operations, maintain minimal inventory levels, and enhance overall responsiveness to customer needs.