[LINK] W3C "Efficient XML Interchange" (EXI) Standard
stephen at melbpc.org.au
stephen at melbpc.org.au
Sat Mar 12 22:07:01 AEDT 2011
W3C: For Immediate Release
W3C Extends Reach of XML to New Devices and Applications
The Has a Dramatic Impact on Speed, Performance and Power Consumption
W3C 10th March 2011 Today the W3C announces an advance that will
enable people to use widely deployed open Web standards in brand new
The "Efficient XML Interchange" (EXI) standard dramatically improves the
performance, network efficiency, and power consumption of applications
that use XML.
EXI is a very compact representation of XML information, making it ideal
for use in smart phones, devices with memory or bandwidth constraints, in
performance sensitive applications such as sensor networks, in consumer
electronics such as cameras, in automobiles, in real-time trading
systems, and in many other scenarios.
"We are amazed with what our customers have accomplished," said John
Schneider, editor of the EXI specification, "Theyve achieved over 100-
fold performance improvements and expanded their data networks to high
speed aircraft, automobiles, mobile devices and sensor networks. At the
same time, theyve achieved dramatic cost savings by using open Web
standards and off-the-shelf products in place of the custom protocols,
gateways and applications previously required by these applications."
W3C Community Resolves Fragmentation; Creates Single Interoperable
The XML standards are omnipresent in enterprise computing, and are part
of the foundation of the Web.
Because the standards are highly interoperable and affordable, people
have wanted to use them in a wide variety of applications.
However, in some settings on devices with low memory or low bandwidth,
or where performance is critical experience has shown that a more
efficient form of XML is required.
Market demand has led to the proliferation of application-specific
approaches, but most were neither efficient nor general enough, and they
sacrificed the interoperability that makes XML so valuable.
To address this fragmentation, W3C brought together diverse stakeholders
and reviewed a broad set of use cases.
The result is the EXI standard. A single, interoperable XML format that
performs well consistently, across the full range of use cases. Extensive
testing shows that EXI performs consistently better than previous XML
formats, data compression, and even packed binary data formats. As such,
it brings the full range of XML benefits to even the most demanding
EXI is Exciting
EXI is already being adopted in Smart Energy Standards to support rapid
communication between networks of smart meters, smart appliances and
EXI accelerates financial trading systems that depend on transaction
EXI speeds up defense applications, where rapid information flow can help
EXI can make XML a more valuable data format for Web applications on
mobile devices, where reduced utilization of the network and processor
improves performance and extends battery life.
The EXI standard is the culmination of years of research, analysis and
benchmarking by the W3C EXI Working Group and its predecessor, the W3C
XML Binary Characterization (XBC) Working Group.
The following organizations provided leadership, guidance, expertise and
support for these efforts: Adobe, AgileDelta, BEA, Boeing, Canon,
Chevron, DataPower, Expway, France Telecom, Fujitsu, High Performance
Technologies, IBM, Intel, KDDI, MITRE, Objective Systems, Oracle, OSS
Nokalva, Nokia, Siemens, Stanford University, Tarari, University of
Helsinki and the Web3D Consortium.
Contact Americas, Australia
Ian Jacobs, <ij at w3.org>
Contact Europe, Africa and the Middle East
Marie-Claire Forgue, <mcf at w3.org>
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