- From: Charles McCathieNevile <charles@w3.org>
- Date: Wed, 8 Dec 1999 08:45:45 -0500 (EST)
- To: WAI AU Guidelines <w3c-wai-au@w3.org>, Judy Brewer <jbrewer@w3.org>
Dear all, thanks to Ian there is a new draft at http://www.w3.org/WAI/AU/PR-WAI-AUTOOLS-19991208 for your perusal. The following outlines the text added to (or in some cases the new vesrions of text in) the draft which will be published shortly. This text is intended to resolve the concerns raised in member review (except the suggestion about having a "priority 0", for which the proposed resolution is not to do it). From the definitions of priority: as part of relative priority: All authoring tools should support all applicable Web Content Guideline checkpoints, but the nature of that support may vary according to the nature of the authoring tool, the expected skill level of the author using the tool, and the requirements of each WCAG checkpoint. In some cases support can be provided automatically, without the need for explicit author participation, in other cases human judgment is required and support is provided by the tool in the form of prompts and documentation. and as a general not on priorities: In choosing priority levels for checkpoints, the Working Group has assumed that "the author" is a competent, but not necessarily expert, user of the authoring tool, and that the author has no prior knowledge of accessibility. For example, the author is not expected to have read all of the documentation but is expected to know how to turn to the documentation for assistance. From the Conformance section (note that the piece on applicability in the 2 december draft was removed) Note. Some example conformance evaluations are available. It should be noted that conformance claims are not necessarily validated or endorsed by W3C. Checkpoint 1.3 (as per the meeting yesterday): 1.3 Ensure that when the tool automatically generates markup it conforms to the W3C's Web Content Accessibility Guidelines [WAI-WEBCONTENT]. [Relative Priority] Checkpoint 3.1: 3.1 Prompt the author to provide equivalent alternative information (e.g., captions, auditory descriptions and collated text transcripts for video). [Relative Priority] Note. Some Checkpoints in Web Content Accessibility Guidelines [WAI-WEBCONTENT] may not be applicable. Checkpoint 3.2: 3.2 Help the author create structured content and separate information from its presentation. [Relative Priority] Note: Some Checkpoints in Web Content Accessibility Guidelines [WAI-WEBCONTENT] may not be applicable. First para of guideline 4 introduction: Many authoring tools allow authors to create documents with little or no knowledge about the underlying markup. To ensure accessibility, authoring tools must be designed so that they can (where possible automatically) identify inaccessible markup, and enable its correction even when the markup itself is hidden from the author. Checkpoint 4.1: 4.1 Check for and alert the author to accessibility problems. [Relative Priority] Note: Accessibility problems should be detected automatically where possible. Where this is not possible, the tool may need to prompt the user to make decisions, or to manually check for certain types of problem. Check for, in 4.1 is linked to the follwing definition in the definitions section: Check for as used in checkpoint 4.1, check for can refer to three types of checking: In some instances an authoring tool will be able to check automatically. For example checking for validity Refer also to checkpoint 2.2. or testing whether an image is the only content of a link. In some cases the tool will be able to "suspect" or "guess"that there is a problem, but will need to confirm with the author. For example, in making sure that a sensible reading order is preserved a tool can present a linearided version of a page to the author. In some cases a tool must rely mostly on the author, and can only ask the author to check. For example, prompting the author to check whether equivalent alternatives for multimedia are appropriate. This is the minimal standard to be satisfied. Subtle, rather than extensive, prompting is more likely to be effective in encouraging the user to verify accessibility where it canot be done automatically. --Charles McCathieNevile mailto:charles@w3.org phone: +61 409 134 136 W3C Web Accessibility Initiative http://www.w3.org/WAI 21 Mitchell Street, Footscray, VIC 3011, Australia (I've moved!)
Received on Wednesday, 8 December 1999 08:45:46 UTC