W3C

The WebCGM Working Group has published a W3C 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. WebCGM aims to balance graphical expressive power on the one hand, and simplicity and implementability on the other. A small but powerful set of standardized metadata elements supports the functionalities of hyperlinking and document navigation, picture structuring and layering, and enabling search and query of WebCGM picture content. WebCGM 2.1 refines and completes the features found in WebCGM 2.0. Learn more about the Graphics Activity.

The XML Processing Model Working Group has published a Proposed Recommendation of XProc: An XML Pipeline Language. This specification describes the syntax and semantics of XProc: An XML Pipeline Language, a language for describing operations to be performed on XML documents. Pipelines are made up of simple steps which perform atomic operations on XML documents and constructs similar to conditionals, iteration, and exception handlers which control which steps are executed. The group has produced an implementation report Comments are welcome through 15 April. Learn more about the Extensible Markup Language (XML) Activity.

The Web Security Context Working Group has published a Last Call Working Draft of Web Security Context: User Interface Guidelines. This specification deals with the trust decisions that users must make online, and with ways to support them in making safe and informed decisions where possible. This document specifies user interactions with a goal toward making security usable, based on known best practice in this area. Comments are welcome through 31 March. Learn more about the Security Activity.

The Media Annotations Working Group has published Working Drafts of Ontology for Media Resource 1.0 and API for Media Resource 1.0. The former document defines the Ontology for Media Resource 1.0, a core vocabulary to describe media resources on the Web. It is defined based on a core set of properties which covers basic metadata to describe media resources. Further it defines syntactic and semantic level mappings between elements from existing formats. The ontology is supposed to foster the interoperability among various kinds of metadata formats currently used to describe media resources on the Web. The latter defines a client-side API to access metadata information related to media resources on the Web. Learn more about the Video in the Web Activity.

W3C published today seven documents related to HTML:

• HTML 5 and HTML5 differences from HTML4. In addition, some content that was part of the HTML 5 specification has been published in two new standalone drafts: HTML Canvas 2D Context and HTML Microdata.
• HTML: The Markup Language, a first draft. This document describes the HTML markup language and provides details necessary for producers of HTML content to create documents that conform to the language. By design, it does not define related APIs, nor attempt to specify how consumers of HTML content are meant to process documents, nor attempt to be a tutorial or "how to" authoring guide.
• HTML+RDFa, which defines rules and guidelines for adapting the RDF in XHTML: Syntax and Processing (RDFa) specification for use in the HTML5 and XHTML5 members of the HTML family.
• Additional Requirements for Bidi in HTML, a first draft. Authoring a web app that needs to support both right-to-left and left-to-right interfaces, or to take as input and display both left-to-right and right-to-left data, usually presents a number of challenges that make it an especially laborious and bug-prone task. Some of these are due to browser bugs, but some can be traced to a gap in the specification of the bidirectional aspects of a given HTML feature. And some of these challenges could be greatly simplified by adding a few strategically placed new HTML features. This document proposes fixes for some of the most repetitive pain points.

All documents were published by the HTML Working Group except the last one, published by the Internationalization Core Working Group.