Today, W3C announces that the Web Content Accessibility Guidelines (WCAG) 2.0 is ready for developers and designers to test in Web content and Web applications. Publication of WCAG 2.0 as a Candidate Recommendation, a major step in the W3C standards process, signals broad consensus in the WCAG Working Group and among public reviewers on the technical content of the document.
"The community is eager for WCAG 2.0 to become a final W3C Recommendation, and this takes us one step closer," said Loretta Guarino Reid, Co-Chair of the WCAG Working Group. "Advancing WCAG 2.0 to Candidate Recommendation provides a stable document that developers can use for trial implementations in their Web sites."
WCAG 2.0 Meets Today's Needs
WCAG addresses accessibility of Web content for people with disabilities and many elderly users, and is one of three Web accessibility guidelines produced by W3C's Web Accessibility Initiative (WAI). WCAG 2.0 provides a stable foundation for accessibility of Web content and Web applications, and supporting documents enable it to be used flexibly across the broad range of Web technologies and environments in today's Web. WCAG 2.0 is designed to be easier to use than WCAG 1.0, and is more precisely testable, using a combination of automated testing and human evaluation.
WCAG 2.0 Incorporates Extensive Community Feedback
"WCAG 2.0 has been developed with extensive community input," said Gregg Vanderheiden, Co-Chair of the WCAG Working Group, and Director of the Trace R&D Center at the University of Wisconsin-Madison. "We've worked very hard, including publishing twelve Working Drafts and addressing more than 3000 comments, in order to ensure that WCAG 2.0 meets the need for an updated international standard with which national and local Web accessibility guidelines can harmonize."
WCAG Working Group Seeks Diverse Implementations of WCAG 2.0
The Working Group seeks feedback from implemention experience of WCAG 2.0 in diverse types of Web sites and Web applications by 30 June 2008. A comprehensive suite of supporting documents is available to help implementors, and includes How to Meet WCAG 2.0, which allows developers and designers to build a customized view of WCAG 2.0 requirements; Understanding WCAG 2.0; Techniques for WCAG 2.0; an Overview of WCAG 2.0 Documents; a WCAG 2.0 FAQ; and Comparison between WCAG 1.0 and WCAG 2.0 to support transitions to WCAG 2.0.
Marie-Claire Forgue | alfa
Stable magnetic bit of three atoms
21.09.2017 | Sonderforschungsbereich 668
Drones can almost see in the dark
20.09.2017 | Universität Zürich
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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22.09.2017 | Life Sciences
22.09.2017 | Medical Engineering
22.09.2017 | Physics and Astronomy