Re: 5.1
Jason White <[email protected]> Wed, 23 Oct 2002 18:01:48 +1000
| Newsgroups | gmane.org.w3c.accessibility.guidelines |
|---|---|
| Message-ID | <[email protected]> |
Lisa Seeman writes: > I was looking again at 5.1 and I am a bit confused. Are requiring that all > HTML passes the HTML validate for minimal conformance or level two? Yes, definitely, and no I wouldn't classify validity errors. The document is either valid, or it is not. As an illustration of the problem, Emacspeak supports the pre-processing of web pages by an XSLT transform to improve accessibility. The more invalid the content is, the worse the results are likely to be - often causing the XML/HTML parser to crash. Of course, the tool developers could work around the problem, but obviously this would involve more work. At level 2 I think the requirement should be one of validity. Invalid documents also tend to be poorly designed in other respects. Of course, given a valid document a tool can make assumptions (based on the DTD or schema) regarding its structure. An accessible document should be predictable in this respect so that it can be transformed more easily.