RFID's Biggest Boosters

Retailers such as Wal-Mart and Target and pharmaceutical companies like Pfizer are increasingly relying on RFID to keep tabs on shipments

By Rachael King

Radio frequency identification, or RFID, was heralded as a technology that would revolutionize how retailers run their operations. While it hasn't lived up to the hype, it still holds promise for many companies. See how RFID is changing how Wal-Mart, Pfizer and others are doing business.