- From: eric hansen <ehansen@ets.org>
- Date: Wed, 03 Mar 1999 15:13:48 -0500 (EST)
- To: w3c-wai-gl@w3.org
Following is a suggested revision and augmentation of the material on conformance claims in the 2/26/99 version. By Eric Hansen {EH}. ==== Conformance Levels This document defines three conformance levels: {EH: Please note below that the following approach avoids confusion by removing reference to priorities in the titles of conformance levels} 1. Conformance Level 1 (CL-1): Conforms to {EH: or "Follows" or "Adheres to" or "Satisfies"} all priority one checkpoints. 2. Conformance Level 2 (CL-2): Conforms to all priority one and two checkpoints. 3. Conformance Level 3 (CL-3): Conforms to all priority one, two, and three checkpoints. Conformance Claims Claims of conformance must provide the following information. 1. Content scope: The scope of the content that the claim covers, e.g., a portion of a page, a single page, or a whole site. 2. Conformance level: Which level (CL-1, CL-2, or CL-3) has been achieved. 3. Guidelines title: E.g., "W3C Web Content Accessibility Guidelines". 4. Guidelines URL: The URL of the guidelines document, e.g., <http://www.w3.org/TR/1999/WD-WAI-PAGEAUTH-19990226> 5. Limitations: Any limitations in the claim. _Conformance claims may include additional information_, as discussed in the Techniques document. ========= {EH: Material for Techniques Document} Additional Information for Conformance Claims Following is additional information that may be appropriate to include as part of a conformance claim. Some of this material may be required to communicate the limitations of the claim. 1. Validation date: The date(s) on which adherence was validated {EH: One of the key features of Web content is its updatability. This information would help one determine if and when Web content should be revalidated.} 2. Validation method: Which method(s) were used to validate the claim {EH: Bobby vs. Inspection by developers vs. Evaluations by people with disabilities, etc.} 3. Reference URL and relationship: Other relevant page and relationship to it (e.g., URL of main page and explanation that this page is an accessible "alternative" page): URL and explanation of the relationship to it {EH: The additional ones below could be added as well, along with explanations.} 4. Comment 5. Exception 6. Substitution 7. Waiver 8. Qualification 9. Interpretation Example of a Conformance Claim Following is an example of a conformance claim. In order to facilitate exposition of the example claim, it has been broken into several sections. {EH: I suggest that the working group post a page on the Web as an actual example. I use one of my own below as a placeholder.} Content identifier (required): "This page (http://www.ets.org/indxtext.html)þ" Conformance level (required): "þachieved Conformance Level 1 þ" Qualifications: "þby avoiding Priority 1 problems (Bobby "Accessibility Errors") that were definitively identified by Bobby 3.0 beta. (Bobby cannot definitely identify all Priority 1 problems)." Guidelines title (required): "Bobby 3.0 beta uses the 21 July 1998 version of the WAI Page Author Guidelines,þ" Guidelines URL (required): "þwhich is located at http://www.w3.org/WAI/GL/19980721txt.htm." Reference URL and relationship: "This page is an accessible version of a page located at http://www.ets.org/indxtext.html." Validation date: This validation occurred on 26 January 1999. Comments: An earlier version of this page was reviewed for screen-reader friendliness in December 1998 by an accessibility expert who is blind. {EH: Where should one put these claims? Do we want to suggest a standard meta tagging scheme for this purpose? Eventually, for example, there needs to be some standard way of documenting the fact that an alternative, accessible page is a substitute for a specific main page.} ============================= Eric G. Hansen, Ph.D. Development Scientist Educational Testing Service ETS 12-R Rosedale Road Princeton, NJ 08541 (W) 609-734-5615 (Fax) 609-734-1090 E-mail: ehansen@ets.org
Received on Wednesday, 3 March 1999 15:33:01 UTC