Wal-Mart stores

• no line of sight requirement
• the tag can stand a harsh environment
• long read range
• portable database
• multiple tag read/write
• tracking people, items, and equipment in real time

The disadvantage of RFID:

• expensive compare with bar code
• bulkier, due to embedding of electronic components in the tag. However, with advanced techniques, it is possible to reduce the size, and weight of the tags to a large extent.

____________________________________________________________________

National library board (NLB)

I learn how NLB uses RFID tag to develop an effective on-shelf tracking system.

• RFID tags replace both the EM security strips and barcode
• simplify patron self check-out/check-in.
• ability to handle material without exception for video and audio tapes
• radio frequency anti-theft detection is innovative and safe
• high-speed inventory and identify items which are out of proper order