RFID means Radio Frequency Identification.
For example the old method of barcodes scanning require you to see the barcodes and see the actual product you are scanning.
This method of barcodes scanning is used by many industries viz. freight, airline etc. What they do is that they tag your item with a barcodes. So it means that if they can't see the barcodes, they can't see your product.
Using a radio frequency tagging method, they can track your item without having to see it or know where it is. No more lost items or baggage!
SAP provides pre-configured software as a solution for RFID that enable real-world awareness through sensing and responding to the presence and movement of objects in real time.
For more information go to link
http://www.sap.com/solutions/rfid/businessprocesses/index.epx
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