Which retail innovation, first implemented widely in the 1970s but revolutionized in the 2000s, allows for real-time inventory tracking and has been called 'retail's nervous system'?

In the fast-paced world of retail, technological innovations continuously reshape how businesses operate and engage with customers. This poll tests your knowledge about a major retail innovation that fundamentally transformed inventory visibility and customer experience. While many retail technologies have made incremental improvements, this particular innovation represented a paradigm shift that changed retail operations worldwide and continues to evolve today.

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RFID (Radio-Frequency Identification) technology
Barcode scanning/UPC system
Electronic shelf labels (ESLs)
Computer-vision inventory management