Recent Publications

Ontology for Media Resources 1.0 is a W3C Recommendation

2012-02-09T18:17:15Z

The Media Annotations Working Group has published a W3C Recommendation of Ontology for Media Resources 1.0. This document defines the Ontology for Media Resources 1.0. The term "Ontology" is used in its broadest possible definition: a core vocabulary. The intent of this vocabulary is to bridge the different descriptions of media resources, and provide a core set of descriptive properties. This document defines a core set of metadata properties for media resources, along with their mappings to elements from a set of existing metadata formats. Besides that, the document presents a Semantic Web compatible implementation of the abstract ontology using RDF/OWL. The document is mostly targeted towards media resources available on the Web, as opposed to media resources that are only accessible in local repositories. Learn more about the Video in the Web Activity.

WebRTC 1.0: Real-time Communication Between Browsers Draft Published

2012-02-09T18:14:44Z

The Web Real-Time Communications Working Group has published a Working Draft of WebRTC 1.0: Real-time Communication Between Browsers. This document defines a set of APIs to represent streaming media, including audio and video, in JavaScript, to allow media to be sent over the network to another browser or device implementing the appropriate set of real-time protocols, and media received from another browser or device to be processed and displayed locally. This specification is being developed in conjunction with a protocol specification developed by the IETF RTCWEB group and an API specification to get access to local media devices developed by the Media Capture Task Force. Learn more about the Ubiquitous Web Applications Activity.

EMMA: Extensible MultiModal Annotation markup language Version 1.1 Draft Published

2012-02-09T18:09:45Z

The Multimodal Interaction Working Group has published a Working Draft of EMMA: Extensible MultiModal Annotation markup language Version 1.1. This document is part of a set of specifications for multimodal systems, and provides details of an XML markup language for containing and annotating the interpretation of user input. Examples of interpretation of user input are a transcription into words of a raw signal, for instance derived from speech, pen or keystroke input, a set of attribute/value pairs describing their meaning, or a set of attribute/value pairs describing a gesture. The interpretation of the user's input is expected to be generated by signal interpretation processes, such as speech and ink recognition, semantic interpreters, and other types of processors for use by components that act on the user's inputs such as interaction managers. Learn more about the Multimodal Interaction Activity.

HTML/XML Task Force Report Note Published

2012-02-09T16:21:36Z

The Technical Architecture Group has published a Group Note of HTML/XML Task Force Report. This document is the report of the TAG Task Force established to explore how interoperability between HTML and XML could be improved. It describes several use cases that the Task Force considered relevant and proposed resolutions to those cases. Learn more about the Technical Architecture Group.

Widget Access Request Policy is a W3C Recommendation

2012-02-07T15:01:55Z

The Web Applications Working Group has published a W3C Recommendation of Widget Access Request Policy. This specification defines the security model controlling network access from within a widget, as well as a method for authors to request that the user agent grant access to certain network resources or sets thereof. Learn more about the Rich Web Client Activity.

CSS Positioned Layout Module Level 3 Draft Published

2012-02-07T14:57:39Z

The Cascading Style Sheets (CSS) Working Group has published the First Public Working Draft of CSS Positioned Layout Module Level 3. CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, in speech, etc. This module contains the features of CSS level 3 relating to positioning and stacking of elements. It includes and extends the functionality of CSS level 2, which builds on CSS level 1. The main extensions compared to level 2 are the ability to position elements based on CSS Region boxes, and the ability to specify a different containing blocks for elements. Learn more about the Style Activity.

Last Call: Web IDL

2012-02-07T14:54:39Z

The Web Applications Working Group has published a Last Call Working Draft of Web IDL. This document defines an interface definition language, Web IDL, that can be used to describe interfaces that are intended to be implemented in web browsers. Web IDL is an IDL variant with a number of features that allow the behavior of common script objects in the web platform to be specified more readily. How interfaces described with Web IDL correspond to constructs within ECMAScript execution environments is also detailed in this document. It is expected that this document acts as a guide to implementors of already-published specifications, and that newly published specifications reference this document to ensure conforming implementations of interfaces are interoperable. Comments are welcome through 28 February. Learn more about the Rich Web Client Activity.

Java language binding for Web IDL Draft Published

2012-02-07T14:50:12Z

The Web Applications Working Group has published the First Public Working Draft of Java language binding for Web IDL. This document defines the Java language binding for Web IDL, the interface definition language for the Web platform. Learn more about the Rich Web Client Activity.

Last Call: Vibration API

2012-02-02T14:34:34Z

The Device APIs Working Group has published a Last Call Working Draft of Vibration API. This specification defines an API that provides access to the vibration mechanism of the hosting device. Vibration is a form of tactile feedback. The API is designed to tackle high-value use cases related to gaming, and is not meant to be used as a generic notification mechanism. Comments are welcome through 01 March. Learn more about the Ubiquitous Web Applications Activity.

The PROV Data Model and Abstract Syntax Notation Draft Published

2012-02-02T14:29:17Z

The Provenance Working Group has published a Working Draft of The PROV Data Model and Abstract Syntax Notation. PROV-DM is a data model for provenance for building representations of the entities, people and activities involved in producing a piece of data or thing in the world. PROV-DM is domain-agnostic, but is equipped with extensibility points allowing further domain-specific and application-specific extensions to be defined. PROV-DM is accompanied by PROV-ASN, a technology-independent abstract syntax notation, which allows serializations of PROV-DM instances to be created for human consumption, which facilitates its mapping to concrete syntax, and which is used as the basis for a formal semantics. Learn more about the Semantic Web Activity.

Three Last Call Working Drafts published by the RDF Web Applications Working Group

2012-01-31T15:05:00Z

The RDF Web Applications Working Group has published three Last Call Working Drafts today:

Together, these documents outline the vision for RDFa in a variety of XML and HTML-based Web markup languages. RDFa Core 1.1 specifies the core syntax and processing rules for RDFa 1.1 and how the language is intended to be used in XML documents. RDFa Lite 1.1 provides a simple subset of RDFa for novice Web authors. XHTML+RDFa 1.1 specifies the usage of RDFa in the XHTML markup language.

A number of improvements have been made to RDFa 1.1 over the past year by working closely with Google, Microsoft, Yahoo! and the other search engine developers. Public review and comments have resulted in a number of further refinements to the language that eases the learning curve for beginner Web authors.

The release of these documents as Last Call Working Drafts is a signal to the public that the Working Group believes that all of the technical requirements, public comments and reported issues have been addressed. It is also an open invitation to the general public to review and provide feedback on the finalization of this technology via the RDF Web Applications Working Group mailing list, by 21 February. Learn more about the Semantic Web Activity.

Incubator Group Report: Media Analysis Management Interface

2012-01-25T13:34:34Z

The Media Analysis Management Interface Incubator Group published its final report, Media Analysis Management Interface XG Final Report. The Media Analysis Management Interface (MAMI) enables the understanding of the real world at a low cost by using analysis engines such as video image processing engines, sensor data analysis engines, and so on. It also enables various services to be easily provided, such as physical security, environmental load reduction, and intelligent accessibility services. The MAMI Incubator Group described the requirements of the MAMI and six use cases in three fields: energy saving, video surveillance, and operational improvement. The Incubator Group expects to collaborate with other W3C working groups, in particular the Multimodal Interaction Working Group.

This publication is part of the Incubator Activity. This work is not on the W3C standards track.

Group Note: MMI interoperability test report

2012-01-24T14:48:11Z

The Multimodal Interaction Working Group has published a Group Note: MMI interoperability test report. This document describes an interoperability test, executed by various members of the Multimodal Interaction Working Group, to demonstrate interoperability of multimodal components which are implementing the "Multimodal Architecture and Interfaces" specification. Learn more about the Multimodal Interaction Activity.

Last Call: XML processor profiles

2012-01-24T14:39:42Z

The XML Processing Model Working Group has published a Last Call Working Draft of XML processor profiles. This specification defines several XML processor profiles, each of which defines how any given XML document should be processed, both operationally and in terms of what information must be made available to applications. It is intended as a resource for other specifications, which can by a single normative reference establish precisely what input processing they require as well as what information they require. Comments are welcome through 29 February. Learn more about the Extensible Markup Language (XML) Activity.

W3C Invites Implementer Feedback on XML Security 2.0 Specifications

2012-01-24T14:18:24Z

The XML Security Working Group invites implementation of three Candidate Recommendations: XML Signature Syntax and Processing Version 2.0, Canonical XML Version 2.0, and XML Signature Streaming Profile of XPath 1.0. XML Signatures provide integrity, message authentication, and/or signer authentication services for data of any type, whether located within the XML that includes the signature or elsewhere. The XML Security 2.0 specifications are designed to update the XML Signature and Canonical XML specifications to improve performance, streaming support, robustness, and reduced attack surface.

The Working Group has also published a W3C Note: XML Security RELAX NG Schemas, a document that provides RELAX NG schemas corresponding to the normative XSD schemas for XML Signature 1.1, XML Encryption 1.1, and related specifications.

To address patent disclosures related to the XML Signature 1.1 and XML Encryption 1.1 specifications, W3C has chartered a Patent Advisory Group. Concerns related to XML Signature 1.1 may also apply to XML Signature 2.0.

Learn more about the Security Activity.