4.2.1. Inventory control strategy
In the simulation models, to ensure that the raw materials
flow into each workstation is in the form of a full kanban container instead of a single product,
some rules are selected in SIMPROCESS to govern the flow of materials.
An inventory control strategy called ""draw down"" is used in the simulation package. The draw
down strategy requires that the queue has to build up to its high limit before the GATE is open to
release the WIP to downstream. Once the high limit is reached, the GATE is opened, and the WIP
will be released to downstream until the low limit is reached. Then the GATE will be closed until
the high limit is reached again. Thus the queue level cycles between the two limits.