Final answer:
An RF scanner is used for inventory management, allowing for efficient tracking of inventory levels and movement of goods in various settings like warehouses and retail stores.
Step-by-step explanation:
An RF scanner is a device used to read barcodes and radio-frequency identification (RFID) tags to track inventory, making it a vital tool in inventory management. An RF scanner helps workers quickly capture information about the items that are being received, stored, picked, or shipped out, streamlining the inventory process and improving accuracy. Tasks such as verifying inventory levels, updating stock quantities, and tracking the movement of goods through a warehouse or retail setting are typically conducted using RF scanners.
Therefore, among the options provided: inventory management, payroll processing, customer service, and employee training, it is the inventory management process that requires the use of an RF scanner.