- From: Catherine Laws <claws@us.ibm.com>
- Date: Thu, 20 Apr 2006 10:10:25 -0500
- To: Jim Allan <jimallan@tsbvi.edu>
- Cc: WAU-ua <w3c-wai-ua@w3.org>
Here are some comments I have so far regarding your WCAG 2.0 - UAAG 1.0 correlation in http://www.tsbvi.edu/technology/uawg/wcag2.htm: For WCAG Guideline 1.1 Provide text alternatives for all non-text content: Additional UAAG guidelines that apply are: Guideline 1.3 (P1), which talks about handling non-text messages, and Guideline 2.8 (P3) No repair text talks about empty content as appropriate for non-text content that is decoration. For WCAG Guideline 1.2 Provide synchronized alternatives for multimedia : I don't think UAAG Guidelines 4.4 and 4.5 about controlling multimedia apply, but I think UAAG 2.5 Make captions, transcripts, audio descriptions available (P1) and 4.6 Do not obscure captions do cover WCAG 1.2.1 - 1.2.4. A lower priority (P3) version of UAAG 2.5 could possibly be written to cover WCAG 1.2.5 (sign language), 1.2.6 (extended audio descriptions), and 1.2.7 (full multimedia text alternative). For WCAG 1.3.2 Any information that is conveyed by color is visually evident without color, the following UAAG guidelines apply because they discuss user configuration of color and about not relying on color alone to convey information: - 4.3 Configure text colors (P1) - 10.2 Highlight selection content focus, enabled elements, and visited links (P1) - 10.6. Highligh current viewport (P1) For WCAG 1.3.4 Information that is conveyed by variations in presentation of text is also conveyed in text or the variations in presentation of text can be programmatically determined. and 1.3.5 Information required to understand and operate content does not rely on shape, size, visual location, or orientation of components, the following UAAG guidelines apply as well as UAAG 6.4: 4.1 Configure text scale (P1) 4.2 Configure font family (P1) 4.11 Configure speech synthesizer characteristics (such as voice) (P1) For WCAG 1.4.1 Text or diagrams, and their background, have a luminosity contrast ratio of at least 5:1, the following UAAG guidelines also discuss a contrast ratio and configuration of the background colors, but none of them specify this specific 5:1 ratio: - 4.6 Do not obscure captions (P1) - 10.2 Highlight selection content focus, enabled elements, and visited links (P1) UAAG 4.8 Independent volume control, does not discuss independent control of background and foreground sounds as indicated by WCAG 1.4.2 and 1.4.4. For WCAG 2.1 Make all functionality operable via a keyboard interface , the following UAAG guidelines also apply: - 1.2 Activate event handlers (through keyboard input alone) (P1) - 11.4 Single key access (for a specific list of user agent functionality) (P2) Cathy Laws Manager - IBM Software Group (SWG) Accessibility Architecture and Development 11501 Burnet Road, Bldg 902 Office 5C016, Austin, Texas 78758 Phone: (512) 838-4595 FAX: (512) 246-8502 E-mail: claws@us.ibm.com, Web: http://www.ibm.com/able Vision without action is merely a dream, action without vision is merely passing time, but action with vision can change the world.” Nelson Mandela
Received on Thursday, 20 April 2006 15:20:46 UTC