- From: WCAG 2.0 Comment Form <nobody@w3.org>
- Date: Mon, 1 May 2006 07:04:37 +0000 (GMT)
- To: public-comments-wcag20@w3.org
- Message-Id: <20060501070437.1B6DFBDA7@w3c4.w3.org>
Item Number: Related Documents Part of Item: Comment Type: TE Comment (Including rationale for any proposed change): Conformance: Aggregated Content. If content contains authored units that do not themselves carry any conformance claims, and those authored units are modified or substituted as a result of an aggregation process, then the conformance status of those authored units is unknown at any point in time unless individual assessments are carried out. Such assessments may be impractical, for example on sites that collect comments from the public, maintain e-mail archives, etc. As the guidelines are currently drafted, the conformance of any Web unit containing such authored units depends in turn on the conformance of those authored units, which may vary over time. In order to avoid making false conformance claims, the operator of such a Web site would, presumably, have to exclude such Web units from the scope of any conformance claim, in accordance with the scoping provisions of the conformance section. I think this consequence needs to be clarified and stated explicitly. Alternatively, the scoping provisions could be modified to allow individual authored units to be excluded from the ambit of a claim, but in that case it is by no means clear how the \"authored units\" could be precisely identified and specified in the claim. Proposed Change: Clarify that if it is unknown whether an authored unit participating in aggregation conforms to WCAG 2.0, or which level of conformance is achieved, then it is likewise unknown what, if any, level of conformance is attained by Web units in which it appears. Implementors should be advised to exclude Web units containing such \"unknown\" authored units from the scope of any conformance claim in accordance with the \"scoping\" provisions of the conformance section of WCAG 2.0. Note that by controlling what may appear in authored units participating in the aggregation process, through technical or other means, it may be possible to ensure that a given level of conformance is always satisfied. Under these circumstances (where the conformance of resulting Web units is guaranteed), conformance claims with respect to such aggregated content may reliably be made.
Received on Tuesday, 2 May 2006 16:34:51 UTC