"OK, weve now got most of our suppliers finally on board with automatic identification and data capture technologies via bar codes. Sure, lets throw RFID at them, too," said Mike Liard, RFID research program director at VDC. "Youve got to address Problem A before you start addressing Problems B, C and D."
Once RFID (radio frequency identification) is operating at the item level, "Wal-Mart will push something like 7 Tbytes [terabytes] of data every day," Liard said. "Imagine that cycling through your system, or even a piece of that cycling through your system."
VDCs point is that rather than replacing bar codes, RFID will co-exist with them for quite some time. Many IT executives may not be factoring that in when projecting network load and other operational issues.
Liard has praise for Wal-Mart for pushing the industry to move ahead with RFID deadlines, but he questions whether the unrealistic deadlines arent going to end up doing more harm than good.
"Did they really think we were going to surmount and get over these problems by Jan. 1, 2005? We have disastrous technology performance issues," he said. "We have few standards. We dont have UHF having proven itself in the supply chain yet on a performance level nor on an ROI [return on investment] level.
"Youre dealing with open-loop versus closed-loop applications. Closed-loop applications are a lot easier with RFID technology. So, yeah, theyve bitten off quite a lot," Liard said. "Have they bitten off more than they can chew? I think theyre going to have to make a statement on that come Jan. 1, 2005."
VDC found that todays retail IT systems are not yet up to the task of handling RFID in a sophisticated, integrated fashion.
"Weve got very archaic legacy systems that may not be able to handle the influx of data," Liard said. "Often, these are very disjointed systems that may not have centralized computing. You may have different folks doing different things at remote sites where things are not necessarily networked together.
"We need to be dealing with lots of integration–integration with warehouse management systems [WMS], ERP [enterprise resource planning], supply chain execution systems," he said. "RFID is a complex technology, and it brings its own set of issues and challenges to systems integration.
"End-users have to ask, Where do I tie it into my enterprise? Do I do it on the back end? Do I do it on the front end? Do I do it with my warehouse management system or do I attach it to my ERP? A lot of those questions just havent been answered yet."
Most of todays RFID deployments have been limited to entry-level RFID efforts, where the data management issues are more controllable. Limited successes in todays trials may not accurately predict what will happen at the next stage, which Liard projects will happen from late 2005 through the middle of 2006.