kanban

The sub-assembly line assembles A. It goes to processing line 1 to withdraw part a, and for this purpose it must take the sub-assembly kanban (called withdrawal kanban). It goes to store a, withdraws boxes in the required quantity and removes those kanban (called in-process kanban or production-ordering kanban) that are attached to the boxes.

However, since so many Japanese industries have adopted Kanban, this problem is diminishing.

kanban board