- From: Ian Jacobs <ij@w3.org>
- Date: Tue, 11 May 2010 09:19:23 -0500
- To: w3c-news@w3.org
New W3C Standard Defines Way to Organize and Share XML Workflows
XProc (XML Pipeline) Replaces Ad-Hoc Approaches
http://www.w3.org/ — 11 May 2010 — Today W3C announced a powerful
tool for managing XML-rich processes such as business processes used
in enterprise environments. The specification "XProc: An XML
Pipeline Language," provides a standard framework for composing XML
processes. XProc streamlines the automation, sequencing and
management of complex computations involving XML by leveraging
existing technologies widely adopted in the enterprise setting.
XProc Helps Organize Processes using Standard Descriptions
XML, the Extensible Markup Language, is a mainstay of
contemporary enterprise computing that is used to store, transform,
and exchange an enormous range of information, from tax returns to
fuel tank levels. Many business processes can be modeled as a series
of operations, each of which involves XML input or output. Companies
use these models for many purposes, such as ensuring quality
controls are met or assembling compliance reports.
W3C published the first XML standard in 1998. Since then W3C has
standardized a number of core operations on XML including validation
(Schema languages), query (XQuery), transformation (XSLT), and
linking (XLink). Business processes combine and build on these core
operations, but there has been no standard to describe such
sequences. Instead, ad-hoc solutions have been used, which are not
easily shared (e.g., with others in a supply chain) and do not
leverage widely deployed tools or support.
"XML is tremendously versatile," said Norman Walsh, MarkLogic, and
one of the co-editors of the specification. "Just off the top of my
head, I can name standard ways to store, validate, query, transform,
include, label, and link XML. What we haven't had is any standard
way to describe how to combine them to accomplish any particular
task. That's what XProc provides."
XProc can be used, for example, to sequence the following set of
operations: (1) given a news ticker feed (2) whenever a company is
mentioned, use a Web service to contact a stock exchange then (3)
insert current share prices into the feed and (4) insert background
information about the company that has been extracted from a
database. In addition, this enhanced feed could be presented in
several ways to multiple users including (5) for print or (6) with
an interactive form so that people can purchase shares online. In
this scenario, XProc controls a number of processes that might be
implemented using other standards such as XQuery, XSLT, XSLT-FO,
XForms, and HTML.
XProc is XML; Benefits from Existing XML Infrastructure
Because XProc descriptions are in XML, people can use readily
available XML tools to generate, transform, and validate them.
"Processing XML as XML is a hugely powerful design pattern, and
XProc makes this easy and attractive," said Henry Thompson,
University of Edinburgh and one of the co-editors of the
specification. "XProc exemplifies what W3C does best: we looked at
existing practice — people have been using a number of
similar-but-different XML-based languages — and we produced a
consensus standard, creating interoperability and critical mass."
XProc is supported by a test suite that covers all of the
required and optional steps of the language as well as all the
static and dynamic errors.
=================
Resources:
Press release in English:
http://www.w3.org/2010/05/xproc-pr.html.en
Translations (when available):
http://www.w3.org/Press/Releases-2010.html#x2010-xproc
Media Contacts
Contact Americas, Australia, Europe, Africa, Middle East —
Ian Jacobs, <ij@w3.org>, +1.718.260.9447
mailto:ij@w3.org
Contact Asia —
Naoko Ishikura, <keio-contact@w3.org>, +81.466.49.1170
mailto:keio-contact@w3.org
About the World Wide Web Consortium
The World Wide Web Consortium (W3C) is an international consortium
where Member organizations, a full-time staff, and the public work
together to develop Web standards. W3C primarily pursues its mission
through the creation of Web standards and guidelines designed to
ensure long-term growth for the Web. Over 350 organizations are
Members of the Consortium. W3C is jointly run by the MIT
Computer Science and Artificial Intelligence Laboratory (MIT CSAIL)
in the USA, the European Research Consortium for Informatics and
Mathematics (ERCIM) headquartered in France and Keio University
in Japan, and has additional Offices worldwide. For more
information see http://www.w3.org/
--
Ian Jacobs (ij@w3.org) http://www.w3.org/People/Jacobs/
Tel: +1 718 260 9447
Received on Tuesday, 11 May 2010 14:19:29 UTC