- From: Tim Noonan <tnoonan@softspeak.com.au>
- Date: Thu, 13 Jul 2000 22:51:44 +1000
- To: <w3c-wai-gl@w3.org>
- Cc: "Jason White" <jasonw@ariel.ucs.unimelb.EDU.AU>
This is an annotated version of Jason's re-drafting of the WCAG guidelines. My comments are within square brackets. I've deleted paragraphs which I have not commented on. My notes mostly relate to the language, terminology and word of items, rather than the recommendations they imply. I have attempted to read this document as if I were a relative new-comer to the area, looking for things that would make me confused, or where words might make me wonder "what does that mean" thus distracting me from the important principles the document presents. I am very excited about this kind of structure and approach to the new document, as I think it addresses many of the concerns I so frequently encounter and try to defend about the readability of the current guidelines. In a word, the document is "clear" but isn't waffly. I also like the increased hierarchical structure which can lead to both a brief and a detailed view of the document, something we all agreed was vital at the face-to-face meeting in March. this more hierarchical structure coupled with plainer less jargonistic language will, I believe, make understanding the principles of accessible web design magnitudes clearer for new-comers to the area. The table of contents will- at a glance - give people a sense of what we are on about. Thanks Jason for offering such a mature document as a starting draft. Some of these notes may seem pedantic and picky, but in some public documents I think that we need to keep Consortium-specific terms to a minimum if there are other clearer and more accessible alternatives.] 1: Principles These are the highest, most abstract general maxims [can we find another word?] of accessible design, from which the concrete requirements are derived. In effect, they serve as subject headings under which the guidelines are categorized. They correspond to what were called "guidelines" in WCAG 1.0. 2: Guidelines. These requirements are more specific and detailed than the general principles; however, they are not specific to any particular technology. Some of the requirements may be applicable only to a certain range of protocols or data representations (E.G. multimedia formats), but they are not restricted to the features or capabilities that may appertain [can we find another word] to any particular, existing standard, specification or implementation. Guidelines in this sense sometimes correspond to [what were termed ] "checkpoints" in WCAG 1.0, but only in those instances where the latter are expressed in general (rather than technology-specific) terms. 3: Checkpoints [not shown in this draft]. These are the technology-specific requirements, suitable for implementation by a content designer or authoring tool, which have been derived by applying the guidelines to a specific technology, whether it be a communication protocol, software interface, or a combination of markup and/or style languages. [Should we add: checkpoints may also be one basis for automated review of a webpage by validation tools.] software Checkpoints are non-normative, in that there may exist other, equally effective means of satisfying the requirements specified in the guidelines. However, proper application of the checkpoints is deemed to constitute a correct and adequate implementation of the guidelines. Stated differently, the checkpoints operate as sufficient, but not as necessary conditions for determining whether the guidelines have been followed. Principles and Guidelines Principle 1: Provide alternatives to auditory and visual presentations [if this wording, rather than Gregg's is adopted, then maybe change word "presentations" to "information"] 2. Until user agents can automatically read aloud the text equivalent of a visual track, provide an auditory description of the important information of the visual track of a multimedia presentation. [I think this needs to be much clear, and multimedia presentation needs to be closer up-front for this point, so the reader knows the context of the guideline.] 3. For any time-based multimedia presentation (e.g., a movie or animation), synchronize equivalent alternatives (e.g., captions or auditory descriptions of the visual track) with the presentation. [should we talk about "textual captions" or "text captions" instead of just captions. Reasoning is that multimedia is across mediums (media) and its easier to focus on which medium is being focused on here.] Principle 2: Separate [both] content and structure from presentation, and ensure that significant structural or semantic distinctions are captured in explicit markup. [we use the word semantic a lot in WAI materials, could we define it somewhere, or even in the introduction. Although people with a linguistic or programming background understand the term, we don't want to lose readers in the first instance.] 1. Use markup languages properly and in accordance with specification. [some people will interpret this guideline as stating the obvious, could we sharpen it a bit or imply why its important?] 2. Use style languages, where available, to control layout and presentation. [should we say such as cascading style sheets in html?] 5. Ensure that distinctions which are necessary or beneficial to the rendering of the content in different media (E.G. auditory or tactile) are reflected in the markup. For instance, use markup to identify changes in the natural language of a document, or to distinguish fragments of mathematical notation or computer program code from the surrounding text. [can we give an example of a change in natural language?] Principle 3: Provide default presentations, while facilitating the application of user-specified presentations [the word application is somewhat ambiguous in this point. Are we saying "the use of"? I'm not fully clear on what this principle is trying to get at.] Guidelines 6. Place distinguishing information at the beginning of headings, paragraphs, lists, etc. [such as numbering items etc? or does this mean something else?] 7. Use the clearest and simplest language appropriate for a site's content [and being mindful of its audience]. 8. Supplement text with graphic or auditory presentations where they [this] will facilitate comprehension of the content. 9. Use headings, labels and titles appropriately [and consistently] to identify structurally significant divisions within the content. Note that in addition to full, descriptive labels, it may also be appropriate, in designing complex structures such as tables and forms, to provide abbreviated labels which can be used when the content is rendered on small displays or via speech output. 10. Provide an overview or summary of highly structured [or two-dimensional] materials, such as tables. Principle 6: Compensate for older technologies and missing or incompletely implemented features of user agents Guidelines 1. Make sure that web sites which use newer technologies transform gracefully. [I think the term "transform gracefully" is meaningful to some, but we need to be clearer about what it means to less technical readers.]
Received on Thursday, 13 July 2000 08:53:20 UTC