Kanban is a procedure for controlling production and material flow based on the physical material stock in production.
Material
that is required on a regular basis is continually kept available in
small quantities in production. With Kanban, the replenishment or
production of a material is triggered only when a certain quantity of
the material has been consumed.
This
replenishment is triggered directly by production using previously
maintained master data. Entries in the system are reduced to a minimum -
for example, to the input of a bar code. All other actions in the
system are carried out automatically in the background.
With
Kanban, the production process is designed to control itself and the
manual posting effort is reduced as far as possible. The effects of this
are the shortening of lead times and reductions in stock levels.
With
Kanban, the impulse or signal for the delivery of material can consist
in the work center that needs a material (consumer, demand source)
sending a card to the work center that produces the material (producer,
supply source), for example. This card describes which material and how
much of it is required, and where it is to be delivered.
These
cards (in Japanese "kanbans") have given this procedure its name. When
the material is received, the goods receipt at the demand source can be
posted automatically via a further kanban signal per bar code.
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