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Will Chip-Based Serialization Lock Suppliers into a Single Chip Vendor?
A recent agreement among chipmakers is designed to enable apparel suppliers and others to use RFID tags with different chips, but you should look at the issues carefully before opting for serialization solutions that employ the tag ID.
Like any other industry, chip manufacturers want to control the majority of the market. After all, the goal of each company is to sell as many chips as possible. Currently, each chipmaker has a different method for creating an EPC based on the TID in its chip. So when you start using one chip, you need to configure all equipment around it—software, label printers and so forth. How often do you really want to switch to RFID tags made with a different chip, and then have to change the configurations of all your equipment at all your sites? You might want to change chips because of cost factors, but you might decide against it due to the hassle involved.
Chipmakers are telling us, "Don't worry about serialization management—we'll take care of that for you." My fear is that once you select a chip and use the TID to create EPCs, you will be married to that chip. Yes, you can change it—but without reconfiguring all of your equipment, there is a danger that you might create a duplicate EPC. Are the odds of that occurring worth the gamble, when you might have to pay charge-backs?
To guarantee that each Electronic Product Code is unique, you will likely have to create a database containing every EPC based on a TID, and refer to that database constantly, in order to ensure that all new TID-based EPCs are unique. This now becomes a big nightmare for apparel suppliers and others tagging millions of items annually.
TID is an option for serialization. But due to the fact that EPCs are currently 96 bits, I believe the time for TID-based serialization has not yet arrived. Once longer EPCs become the norm, we will no longer need to use a chipmaker's formula to create EPCs based on TIDs—we will be able to utilize the entire TID as the EPC. I'm sure chip manufacturers will disagree with me, but if you should opt to employ chip-based serialization, be sure to examine the issues carefully—or you might be wedded to one chip provider until death do you part.
Dwight Carver is a pseudonym for an executive at an apparel manufacturing firm. He requested that his identity be withheld, so that he could express his opinion.
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