It's no secret that RFID is having trouble getting the tangible design-in success that it was supposed to achieve. Despite enormous effort and pressure from companies such as Wal-Mart, the practical chal-lenges, costs, and, unforeseen problems—especially when they com-bine hard-to-quantify benefits with excessively optimistic projections from pundits who should know better—are-making large-scale RFID uptake a real struggle.
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