ECONOMICS

Detailed explanation-1: -Order picking methods are defined in terms of: (a) pickers per order-the number of pickers that work on a single order at one time; (b) lines per pick-the number of orders a single item is picked for at one time; and (c) periods per shift-the frequency of order scheduling during one shift.

Detailed explanation-2: -The three basic order picking methods are wave picking, batch picking, and zone picking. Most warehouses use one or a combination of these three methods.