Testimonials for Efficient XML Interchange (EXI) Profile for limiting usage of dynamic memory Recommendation

These testimonials are in support of the W3C Recommendation "Efficient XML Interchange (EXI) Profile for limiting usage of dynamic memory."

Fujitsu | Siemens | Luleå university | Web3D Consortium


EXI technology, used to efficiently represent and share structured data on the Internet, is available for a variety of applications and has been proven highly practical. Now, as the Internet of Things where everything is connected to a network is increasingly gaining momentum, Fujitsu is offering solutions that take a new approach in helping people to realize value in business and society. EXI Profile technology simplifies EXI processing on devices with low memory resources, and holds great promise as an infrastructure technology to realize such concepts. We are very excited to contribute to the development of this technology.

Hiroshi Nagakura, VP of Development Planning Division, Platform Planning & Strategies Unit, Fujitsu Limited.


EXI is seen as a key technology that will expand the reach of the Web to new applications and devices. Thus it has the potential to accelerate and enable the Web of Things (WoT) efforts within the W3C. Siemens supports the broad adoption of EXI, and launched for that purpose the open [EXIficient] implementation. Even more specifically Siemens has significantly contributed to the EXI Profile standardisation process by which we expect that ultra-constrained embedded controller networks can become a new citizen of the Web. An example of use is the Vehicle 2 Grid Communication Interface (V2G CI), where the EXI Profile enables XML communication on ultra-constrained embedded domain devices with no run-time memory allocation. A reference implementation for the V2G standardisation (ISO/IEC 15118, DIN 70121) is provided by Siemens’ [OpenV2G] project. 
[EXIficient] http://exificient.sourceforge.net/ 
[OpenV2G] http://openv2g.sourceforge.net/

- Jörg Heuer, Research Group Head, Corporate Technology, Embedded Networks, Siemens AG

Luleå university

The release of W3C EXI Profile specification for limiting usage of dynamic memory marks an important milestone in the efforts being made by W3C EXI working group to extend the reach of EXI 1.0 format to applications requiring predictive memory usage. Such applications include large-scale monitoring and control installations using resource-constrained embedded systems - an important application area for Luleå university of Technology and the EISLAB research group. The University and EISLAB is committed to support the adoption and further development of EXI, and EXI Profile, by making EXIP open-source and through Artemis and the Arrowhead project.

- Jerker Delsing, Chair Professor, EISLAB, Luleå university of Technology

Web3d Consortium

EXI algorithms provide high-performance XML compression capabilities, suitable for small messages all the way up to “big data” proportions. These capabilities are important for the Compressed Binary Encoding (CBE) of the Extensible 3D (X3D) Graphics International Standard, composing EXI with geometric compression techniques and XML security. The EXI Profile provides guidance for tuning these powerful techniques to reduce memory consumption. Future work may show related ways to reduce computational overhead and thus energy consumption for power-constrained devices. Such work can have global benefits as W3C and EXI help turn the Internet of Things (IoT) into the Web of Things (WoT).

- Don Brutzman, X3D Working Group Co-Chair, Web3D Consortium