The production process is controlled with the help of kanban cards. A kanban card stands for an internal and an external task. The aim of the method is the optimal controlling of the material flow and production adjusted to the actual requirements. In this connection consumption, acquisition period and amount play an important role. The additional delivery follows before well-defined criteria – through kanban cards (pull-principle).
This method makes a continual improvement possible.
Conditions for an optimal use are an as small as possible range of variation in demand, a quantitative high consumption and a manageable variety of products.
The following factors can be determined for the necessary material/parts:
The process oriented towards the customer needs
The process oriented towards the supplier
The kanban coordinator provides
Originally Kanban is a system oriented towards the serial production of items like cars or industrial goods. The applied mechanisms are interesting, but not really adaptable for other systems. The insights gained from the system developed by Toyota can also be used for other methods.