What defines a picking strategy in a WMS?

A picking strategy in a Warehouse Management System (WMS) is fundamentally defined as the method for selecting items from storage for orders. This approach outlines how items are retrieved from their locations within the warehouse to fulfill customer orders efficiently. Different strategies might include single order picking, batch picking, or zone picking, among others, each designed to optimize the picking process based on factors such as order volume, item popularity, and warehouse layout.

Other options do not pertain to the concept of a picking strategy. The rate at which items are sold relates more to sales dynamics rather than order fulfillment processes. Inventory replenishment is concerned with maintaining stock levels and ensuring availability rather than the specific act of picking items for orders. Lastly, the software used in the warehouse is a tool supporting various processes, including picking, but it does not define the picking strategy itself. Thus, the correct answer focuses specifically on the methodology employed in the selection of items for order fulfillment within a WMS.