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Technology : businesses start to embrace open RFID projects

March 2008
Radio-frequency identification (RFID) has matured over the last couple of years as large public deployments drive down the cost of technology. Standardization initiatives now promise to change the nature of RFID projects and allow companies to share information stored on tags with the wider business community.
 
Sales of RFID technologies are certainly robust. Analyst IDTechEx reports that the market for tags, readers, software and infrastructure grew strongly to $4.9 billion in 2007 and predicts the market will grow modestly to £5.3 billion in 2008. By 2018, it says that sales will have increased by a factor of five over 2008, with over 300 times as many tags in use, as RFID opens up an increasing number of sectors.
 
"Globally in 2007, the RFID business remained government driven with the healthcare sector showing particularly strong growth in projects and the financial, security, safety sector dwarfing all others in both expenditure and number of projects. It accounted for a massive 48% of market value with passenger transport, automotive coming second with 19% value share," commented IDTechEx analyst Raghu Das.
 
Some of the growth in 2007 was skewed by China's ID card project, which issued each citizen an identity card. That project alone attracted some $2 billion worth of spending on equipment and catapulted China into an RFID market leadership position. The US, however, leads in terms of the number of active RFID projects, followed by the UK, China and Germany. High-profile projects are underway in a range of companies, from Tesco and Wal-Mart to Airbus, Boeing and a number of airports.
 
Projects touch a wide range of industry sectors. The air transport industry, for example, is interested in the potential of RFID for tracking checked baggage. RFID tags are much more effective than barcodes as they can be read more quickly, contain more information and do not rely on line of sight. Hong Kong Airport says that RFID tags offer read-rates of 97% versus an average of 80% for barcode-only tags. Airlines are also getting involved, with Emirates kicking off a six-month technology trial. It is using RFID tags instead of the standard barcodes on a number of flights between Dubai and London Heathrow.
 
But despite the ambition of many of these projects, full-scale implementations are still thin on the ground. “RFID has the potential to transform business operations and to offer significant business advantages, but more pilots and trials have been made public than full-scale implementations,” says director Michael Liard at analysts ABI Research.
 
One of the key reasons that pilots continue to be more prevalent is because it's much easier to test an application internally. The historical lack of industry-wide RFID standards has made it difficult to translate a pilot into an application that works for all the market stakeholders. Although a dominant partner in the supply chain, such as Wal-Mart, can impose its procedures on its partners, this doesn't always translate into business advantages for the whole supply chain. For it to work for all companies, it is vital to have a consistent approach to what is stored, right down to sharing the same business vocabulary.
 
moving to open applications
 
But things are starting to change. According to ABI Research, one of the most significant developments in 2007 was the market's move beyond traditional closed-loop application environments to embrace newer applications such as asset management and open-loop supply chain applications. Open-loop applications are much more powerful, because they support moving tags and assets between companies by providing standardized access to information related to the RFID tag.
 
RFID tags can link to all manner of business-critical information, such as 'what is it', 'where is it', and 'when did it get there' along with other metadata such as 'why is it there', 'what condition is it in' and 'what is it doing'. Sharing this information is a key business driver, and ultimately even consumers should be able to track their purchase from manufacture to delivery.
 
"With this ability in mind, there are logically three tiers of RFID applications," explains Orange Business Services' Principal Consultant, Sam Forster. "The first is closed-loop, such as Emirates' RFID baggage handling project. The next tier would be to share this information with different airlines and airports in order to track the baggage throughout its entire journey. The final step would be to share this information with the public, so that a passenger, for example, could check on the location of their baggage from their mobile."
 
This move from 'intra' solutions to 'inter' solutions is powered by sharing historical and real-time data, with mechanisms such as the EPC network (see steps to success: the EPC network). The EPC Network supports both private and public information so that companies can choose what information to share and what should remain confidential.
 
There are a number of initiatives to coordinate RFID-related standards. In February, three European standards bodies launched a European Union funded project called the Global RFID Interoperability Forum for Standards (GRIFS). It brings together supply chain standards body, GS1, with telecommunications body European Telecommunications Standards Institute (ETSI) and the European Committee for Standardization (CEN). The project will examine all ongoing standardization initiatives to set up a dialogue and ultimately aim to align all of the standards.
 
After spending years as a perennial pilot technology, RFID can still revolutionize business practices worldwide. Companies are hoping that the standardization of middleware and back-office applications will create the platform to allow them to move away from closed-loop internal applications and share information freely with business partners and ultimately customers.

steps to success: the EPC network

The EPC Network consists of three main components: the EPC (Electronic Product Code) Information Services (EPC IS), Object Naming Service (ONS), and EPC Discovery Services (EPC DS).

“EPC Information Services are individual companies' databases that contain the details related to a product," explains Orange's Forster. "Remember, the EPC itself contains information that identifies the manufacturer and the product, as well as the serial number. Additionally, the EPC IS maintains a record of each EPC status change for that site – such as shipment to customer, receipt from supplier and so - and communicates that status change to the EPC Discovery Service.”

The ONS is the global directory of EPC Information Services that are publicly available to query for product information. It performs the translation between an item’s tag ID and the location of the EPC ISs which hold further information on the history of that particular ID. In the US the ONS is managed by Verisign under contract by EPCglobal Inc, in France, Orange Business Services runs the ONS under a similar contract.

The EPC Discovery Service is essentially an electronic chain of custody (or pedigree for pharmaceuticals) for EPC tags. As an EPC tag is encoded and attached to an item, that data is transmitted to the manufacturer's EPC IS. The data, in turn, is communicated to the EPC Discovery Service. The EPC Discovery Service interacts with Information Services throughout the life of the product and maintains a history of each status change for the EPC tag.

"As the market moves from closed-loop applications to open-loop ones, building and managing Discovery Services with the seamless interoperability of public and private ONS will be the key to success," says Forster.