Recent Publications

Incubator Group Report: Product Modelling using Semantic Web Technologies

2009-10-08T05:00:00Z

The Product Modelling Incubator Group has published their final report. The mission of the Incubator Group was to enable the use of the (Semantic) Web for Product Modelling (PM): the definition, storage, exchange and sharing of product data. Product data is information about the structure and behaviour of things that are realized in industrial processes. So principally product data is about things that are manmade, but it can also be about things in the natural world that interact with those industrial processes and/or its resulting products. The report describes the role and scope of product data, and initial work in two technical areas (1) quantities, units, and scales; and (2) product structure - the decomposition of wholes in parts and the interconnection relationships between these parts. This publication is part of the Incubator Activity, a forum where W3C Members can innovate and experiment. This work is not on the W3C standards track.

Last Call: Widgets 1.0: Widget URIs

2009-10-08T05:00:00Z

The Web Applications Working Group has published a Last Call Working Draft of Widgets 1.0: Widget URIs. Resources inside a widget package are identified and located using a method that is specific to widgets technology. Widget URIs reflect this by providing these specific locators with their own syntax so that resources in widget packages can be readily identified. Comments are welcome through 10 November. Learn more about the Rich Web Client Activity.

Last Call: A MathML for CSS profile

2009-10-06T05:00:00Z

The Math Working Group has published a Last Call Working Draft of A MathML for CSS profile. This document describes a profile of MathML 3.0 that could be used to capture structure of mathematical formulae in the way suitable for further CSS formatting. This profile is expected to facilitate adoption of MathML in web browsers and CSS formatters, allowing them to reuse existing CSS visual formatting model, enhanced with a few mathematics-oriented extensions, for rendering of the layout schemata of presentational MathML. Learn more about the W3C Math Activity.

Widgets 1.0: View Modes Media Feature First Draft Published

2009-10-06T05:00:00Z

The Web Applications Working Group has published the First Public Working Draft of Widgets 1.0: View Modes Media Feature. This specification is part of the Widgets 1.0 family of specifications. It introduces a feature that allows designers to specify different presentations according to "view modes" (e.g., when a widget is running like any other application, when it is running without "chrome," or when occupying all of the screen). Learn more about the Rich Web Client Activity.

Widgets 1.0: View Modes Media Feature First Draft Published

2009-10-06T05:00:00Z

Last Call: Mobile Web Application Best Practices; Guidelines for Web Content Transformation Proxies 1.0

2009-10-06T05:00:00Z

The Mobile Web Best Practices Working Group has published two Last Call Working Drafts: Mobile Web Application Best Practices and Guidelines for Web Content Transformation Proxies 1.0. The former describes Best Practices for the development and delivery of Web applications on mobile devices. The recommendations expand upon statements made in the Mobile Web Best Practices, especially those that relate to the exploitation of device capabilities and awareness of the delivery context. The latter document provides guidance to implementers of Content Transformation proxies as to whether and how to transform Web content. Content Transformation proxies alter requests sent by user agents to servers and responses returned by servers so that the appearance, structure or control flow of Web applications are modified. Content Transformation proxies are mostly used to convert Web sites designed for desktop computers to a form suitable for mobile devices. Comments on both documents welcome through 6 November. Learn more about the Mobile Web Initiative.

SVG Color 1.2 Language, Primer First Drafts Published

2009-10-01T05:00:00Z

The SVG Working Group has published First Public Working Drafts of SVG Color 1.2, Part 2: Language and SVG Color 1.2, Part 1: Primer. The former defines features of the Scalable Vector Graphics (SVG) Language that are specifically for color-managed environments, including document interchange, publishing, and high-quality display. SVG Color extends the control of color, relative to SVG Tiny 1.2, in three ways. Firstly by adding an additional color space for interpolation and compositing; this means that colors are no longer constrained to the sRGB gamut. Secondly by extending the syntax for Paint, thus allowing colors to be specified as calibrated (ICC and named) and uncalibrated ('device') color. Thirdly, it mandates the color management of embedded images. The Primer explains the technical background and gives guidelines on how to use the SVG Color specification with SVG 1.2 Tiny and SVG 1.2 Full modules. Learn more about the Graphics Activity.

W3C Invites Implementation of Six Rule Interchange Format (RIF) Candidate Recommendations

2009-10-01T05:00:00Z

The Rule Interchange Format (RIF) Working Group has published six Candidate Recommendations. Together, they allow systems using a variety of rule languages and rule-based technologies to interoperate with each other and with Semantic Web technologies.

Three of the drafts define XML formats with formal semantics for storing and transmitting rules:

The RIF Production Rule Dialect (PRD) is designed for the kinds of rules used in modern Business Rule Management systems.
The RIF Basic Logic Dialect (BLD) is a foundation for Logic Programming, classical logic, and related formalisms.
The RIF Core Dialect is the common subset of PRD and BLD, useful when having a ubiquitous platform is paramount.

The other drafts:

RIF Datatypes and Builtins (DTB) specifies the datatypes and standard operations (modeled on XPath Functions) available in all RIF dialects
RIF RDF and OWL Compatibility specifies how RIF works with RDF, RDFS, OWL 1, and OWL 2.
RIF Framework for Logic Dialects (FLD) provides a mechanism for specifying extended dialects, beyond BLD, when more expressive power is required.

The group has also published a new version of RIF Test Cases, and three new First Public Working Drafts: RIF Overview, RIF Combination with XML data and OWL 2 RL in RIF.

The Working Group asks all developers to send implementation reports, and other comments, to public-rif-comments@w3.org by 29 October 2009. Learn more about the Semantic Web Activity.

WebSimpleDB API First Draft Published

2009-09-29T05:00:00Z

The Web Applications Working Group has published the First Public Working Draft of WebSimpleDB API. User agents need to store large numbers of objects locally in order to satisfy off-line data requirements of Web applications. Whereas the Web Storage specification is useful for storing pairs of keys and their corresponding values, it does not provide in-order retrieval of keys, efficient searching over values, or storage of duplicate values for a key. The new WebSimpleDB API specification provides a concrete API to perform advanced key-value data management that is at the heart of most sophisticated query processors. It does so by using transactional databases to store keys and their corresponding values. Learn more about the Rich Web Client Activity.

XSL-FO 2.0 First Draft Published

2009-09-29T05:00:00Z

The XSL-FO subgroup of the XSL Working Group has published a First Public Working Draft of Design Notes for Extensible Stylesheet Language (XSL) 2.0, which contains initial and early work on XSL-FO 2.0. XSL-FO defines an XML vocabulary for formatting and layout of XML documents; use XSLT to transform documents into XSL-FO for on-screen or paper formatting, for example into PDF. Public comments are requested, both from users and implementors of XSL 1.x and from people who have been waiting for new features before using XSL-FO. Lean more about XML.

W3C Invites Implementations of Timed Text (TT) Authoring Format 1.0 - Distribution Format Exchange Profile (DFXP)

2009-09-24T05:00:00Z

The Timed Text Working Group invites implementation of the Candidate Recommendation of Timed Text (TT) Authoring Format 1.0 - Distribution Format Exchange Profile (DFXP), used to represent timed text media for the purpose of interchange among authoring systems. Timed text is textual information that is intrinsically or extrinsically associated with timing information. The specification provides a standardized representation of a particular subset of textual information with which stylistic, layout, and timing semantics are associated by an author or an authoring system for the purpose of interchange and potential presentation. Learn more about the Video in the Web Activity.

Last Call: Mathematical Markup Language (MathML) Version 3.0

2009-09-24T05:00:00Z

The Math Working Group has published a Last Call Working Draft of Mathematical Markup Language (MathML) Version 3.0. MathML is an XML application for describing mathematical notation and capturing both its structure and content. The goal of MathML is to enable mathematics to be served, received, and processed on the World Wide Web, just as HTML has enabled this functionality for text. Comments are welcome through 11 November. Learn more about the Math Activity.

Five Web Services Drafts Updated

2009-09-24T05:00:00Z

The Web Services Resource Access Working Group published updates to five Working Drafts: Web Services Enumeration (WS-Enumeration), Web Services Eventing (WS-Eventing), Web Services Resource Transfer (WS-RT), Web Services Transfer (WS-Transfer), and Web Services Metadata Exchange (WS-MetadataExchange). The first describes a general SOAP-based protocol for enumerating a sequence of XML elements that is suitable for traversing logs, message queues, or other linear information models. The second describes a protocol that allows Web services to subscribe to or accept subscriptions for event notification. The third defines extensions to WS-Transfer that deal primarily with fragment-based access to resources to satisfy the common requirements of WS-ResourceFramework and WS-Management. The fourth describes a general SOAP-based protocol for accessing XML representations of Web service-based resources. The fifth defines how metadata associated with a Web service endpoint can be represented as resources, how metadata can be embedded in endpoint references, and how metadata could be retrieved from a Web service endpoint. Learn more about the Web Services Activity.

OWL 2 is a Proposed Recommendation

2009-09-22T05:00:00Z

With more than a dozen implementations of OWL 2 reported, the OWL Working Group has published its OWL 2 Web Ontology Language as a Proposed Recommendation. An ontology is a structured set of terms that a particular community uses for organizing data, such as "title", "author", and "ISBN" for data about books. OWL 2 is a compatible extension to OWL 1, providing additional features for people using ontologies. The OWL 2 document set contains 13 documents, of which 4 are instructional: overview , primer, new features and rationale, and quick reference. The rdf:PlainLiteral datatype, developed for use by OWL 2 and RIF, is also a Proposed Recommendation. Learn more about the Semantic Web.

W3C Invites Implementations of WebCGM 2.1

2009-09-15T05:00:00Z

The WebCGM Working Group invites implementation of the Candidate Recommendation of WebCGM 2.1. Computer Graphics Metafile (CGM) is an ISO standard, defined by ISO/IEC 8632:1999, for the interchange of 2D vector and mixed vector/raster graphics. WebCGM is a profile of CGM, which adds Web linking and is optimized for Web applications in technical illustration, electronic documentation, geophysical data visualization, and similar fields. The Working Group has adopted a public test suite for WebCGM 2.1 and has produced a preliminary WebCGM 2.1 implementation report. Learn more about the Graphics Activity.