RFID, or Radio-Frequency Identification, is a technology used in material management to track and manage items. It works by using electromagnetic fields to automatically identify and track tags attached to objects. These tags contain electronically stored information that can be read remotely by RFID readers.

In material management, RFID is used for various purposes such as inventory management, asset tracking, and supply chain management. It allows for efficient and accurate tracking of items throughout their lifecycle, from production to distribution to consumption.

RFID technology offers several advantages over traditional barcode systems, including the ability to read multiple tags simultaneously, read tags from a distance without line-of-sight, and store more information on each tag. This makes RFID well-suited for applications where large numbers of items need to be tracked quickly and accurately, such as in warehouses, manufacturing facilities, and retail stores.