WCAG 2.0: Normative checklists?


Requirements for WCAG 2.0 states,

  1. "WCAG 2.0 requirements should be expressed in generic terms so that they may apply to more than one markup language or content format."


  2. "Each requirement must be verifiable" and that checklists, techniques, and test suites will provide the necessary detail and tests to determine conformance.

Do general success criteria provide enough information to determine conformance? If not, is it possible to make them testable enough to determine conformance? If not, should we conclude that checklists must be normative? How would putting checklists on the Recommendation track effect our timeline? Can we satisfy the Requirements for WCAG 2.0 with informative checklists?

This document attempts to frame issues for WCAG WG discussion. The issues seem to divide into two themes: Interpretation and Timing.



Standards harmonization

Conformance claims

Which technologies?




Effect on current timeline

The Milestones and Deliverables sections in our draft charter are based on the presumption that development of checklists and techniques is staggered across the next several years. The idea was that at Last Call we could demonstrate applicability of WCAG 2.0 to a variety of technologies with fairly exhaustive coverage of general, html, css, and scripting/web applications techniques and checklists while checklists and techniques for rdf, smil, svg, rdf, and voicexml would be less complete. The milestones show that all of the techniques and checklists would continue to evolve over the course of the WCAG WG charter (proposed to end in 1Q 2006).

If checklists become normative, it is difficult to predict the effect that publishing multiple Recommendation would have on our current timeline. The existing timeline already quite aggressive.

Effect on standards harmonization

The longer we take to develop WCAG 2.0 the more likely other organizations will publish hybrid documents based on WCAG 1.0 and extended to meet the organization's circumstances.

Other options

Ideas to encourage creative thinking.

Diagram of the issues

To help collect issues related to the topic, I created a "map." It's just a brainstorming tool, so others might not find it useful, but it helped me collect the issues. jpg version of map.

Description: There are two primary concepts - Interpretation and Timing. Each concept is in a circle and hanging off of each circle are several concepts. The following is an outline of the concepts.



$Date: 2004/06/09 03:24:33 $ Wendy Chisholm