ORDER PICKING OPTIMIZATION

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World-Class Warehousing and Material Handling

Figure 8.5 RightPick taxonomy of picking schemes

Order Picking Schemes

Pick from Primary

Pick from Storage

Freefrom Picking

Zone Picking

Progressive Order Assembly

Single Order Picking

Batch Order Picking

Downstream Sortation

Complete Single Order Picking

Manual Downstream Sortation

Automated Downstream Sortation

Split Single Order Picking

that the operators do not have order-completion accountability because the lines on an order will be filled from different zones and hence by different order pickers. (A storage zone is distinguished from a picking zone. Storage zones are defined to facilitate efficient and safe storage. For example, storage zones may be established for bulky items, floor-storage items, small items, bar-stock items, refrigerated items, frozen items, flammable items, explosive items, and so on. These zones are specified in slotting.) The opposite of zoning for order picking is free-form picking . In free form picking, order pickers are responsible for picking every line on each order assigned to them, and they are free to move to any aisle in the warehouse. The pros and cons of creating picking zones are highlighted in Table 8.2.

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