Going forward it is highly likely that most DCs will face a wider range of capacity requirements such as, stronger seasonal fluctuations, more promotional activity, and sudden unpredicted changes in demand. All of which will have a direct impact on order fulfillment efficiency and productivity. This greater demand volatility, which may even happen within a shift of operation, will require a strong quick response capability along with greater flexibility in staffing and process operations.
It seems to me that when demand for order processing is reduced, operations like picking and shipping should be able to be throttled back a little, but then be ready to quickly ramp-up again as needed. For example, to accommodate fluctuations in staffing, order fulfillment systems can be designed such that pick modules and picking zones can be staffed with one or multiple operators and pick zone boundaries expanded or contracted to optimize picking efficiency. In addition, picking systems that utilize RF devices, or light and voice directed technology can be designed to accommodate flexible zone boundaries and have the ability to quickly increase or decrease the number of operators in a zone.
Another important reason for adopting flexible system operational practices includes the ability to slow down and speed up conveyors and sorters. Through the integration of a Warehouse Control System (WCS), during hours of slow to moderate order processing requirements, MH equipment speeds can be slowed down, thus reducing equipment wear, noise and energy consumption. If processing is interrupted for a pre-determined period of time, equipment can automatically shut-off or idle, then reactivate when product flow starts again. During peak periods, MH equipment can run at its maximum capacity thereby supporting the higher throughput requirements.
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