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FW: Transition Request: First Public Working Draft of the Efficient XML Interchange Format

From: Grosso, Paul <pgrosso@ptc.com>
Date: Thu, 12 Jul 2007 10:08:24 -0400
Message-ID: <CF83BAA719FD2C439D25CBB1C9D1D302080CFFAC@HQ-MAIL4.ptcnet.ptc.com>
To: <public-xml-core-wg@w3.org>


The XML Core WG should review this work.  This is
only a first WD, but we should make sure we have
no major problems with the general approach at the 
earliest possible opportunity.

Are there any volunteers to review this?


-----Original Message-----
From: chairs-request@w3.org [mailto:chairs-request@w3.org] On Behalf Of
Greg White
Sent: Wednesday, 2007 July 11 19:34
To: Philippe Le Hegaret; Liam Quin
Cc: w3t-comm@w3.org; chairs@w3.org
Subject: Transition Request: First Public Working Draft of the Efficient
XML Interchange Format

Dear Philippe,

On behalf of the Efficient XML Interchange Working Group, please
this request for approval to publish the first public Working Draft of a
proposed efficient encoding format for XML interchange:

Title: Efficient XML Interchange (EXI) Format 1.0
Pre pub URI: http://www.w3.org/XML/Group/EXI/docs/format/exi.html
Post pub TR URI: http://www.w3.org/TR/exi/
Estimated publication date: July 16th (subject to webmaster approval)

The Working Group resolved to request this transition at its
regularly scheduled teleconference on 20th June [1].

We also intend to simultaneously publish a second draft of the Efficient
Interchange Measurements Note [2], which reports on work carried out to
measure the performance and compactness of various exiting formats and
processors, to establish expected performance of any possible W3C
recommendation for such a technology, and to inform the decision making
process about its basis. This draft adds measurements of network
interactions and analysis of the results overall.

The EXI specification document's Abstract and Status sections are as


This document is the specification of the Efficient XML Interchange
format. EXI is a very compact representation for the eXtensible Markup
Language (XML) Information Set that is intended to simultaneously
performance and the utilization of computational resources. The EXI
uses a hybrid approach drawn from the information and formal language
theories, plus practical techniques verified by measurements, for
encoding XML information. Using a relatively simple algorithm, which is
amenable to fast and compact implementation, and a small set of data
it reliably produces efficient encodings of XML event streams. The event
production system and format definition of EXI are presented.

Status of this Document

This section describes the status of this document at the time of its
publication. Other documents may supersede this document. A list of
W3C publications and the latest revision of this technical report can be
found in the W3C technical reports index at http://www.w3.org/TR/.

This is the first Public Working Draft of the Efficient XML Interchange
(EXI) Format 1.0 specification for review by W3C members and other
interested parties. It has been developed by the Efficient XML
(EXI) Working Group, which is part of the Extensible Markup Language

The features and algorithms described in the normative portion of the
document are specified in enough detail adequate for early
experiments, except for Section 9.5.3 Schema-informed Element Grammar
currently describes the feature by an example. Other features that the
is considering are found in the non-normative Appendix E Format Features
Under Consideration, for which only brief descriptions are provided, are
yet useful for start working on the implementation.

Publication as a Working Draft does not imply endorsement by the W3C
Membership. This is a draft document and may be updated, replaced or
obsoleted by other documents at any time. It is inappropriate to cite
document as other than work in progress.

Comments on this document are invited and are to be sent to the public
public-exi@w3.org mailing list (public archive).

This document was produced by a group operating under the 5 February
W3C Patent Policy. W3C maintains a public list of any patent disclosures
made in connection with the deliverables of the group; that page also
includes instructions for disclosing a patent. An individual who has
knowledge of a patent which the individual believes contains Essential
Claim(s) must disclose the information in accordance with section 6 of
W3C Patent Policy.

Greg White and Daniel Vogelheim (chairs of EXI WG) for the EXI group, a
really great team that should be proud of themselves for this

[1] http://www.w3.org/2007/06/20-exi-minutes.html
[2] http://www.w3.org/XML/Group/EXI/docs/meas/exi-meas-report.html
Received on Thursday, 12 July 2007 14:10:53 UTC

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