In this case, the WMS calculates the packing sequence based on
a customer order through the proposed algorithm and gives direction
of the first packing product to picker via the wireless device screen.
As the picker follows the direction of a pick and scan,
the barcode information is forward to the system. The system checks
the information from wireless device and thus sends out the next
picking direction.
Since the system with sequential picking has
been successfully implemented, warehouse operators can operate
picking and packing at the same time. Operators can pack the container
right after order picking. There is no extra buffer space required
for arranging items into a container and packing them.