Accessibility Minutes 2012 04 02
From MemberWiki
Present
- Jon Gunderson (University of Illinois - Co-Chair)
- Nicholas Hoyt (University of Illinois)
- Prasanna Bale (University of Illinois) - Scribe
- Marc Johlic (IBM)
- Ann Abbott (IBM)
Minutes
Present: Jon Gunderson, Nicholas Hoyt, Ann Abbott, Prasanna Bale, Marc Johlic
Jon: https://trac.ainspector.org/design/wiki/interaction-design/conceptual-model
Jon: overview of Conceptual Model
Nick: why do we create rules and How is it related to Conceptual Model?
Nick: conceptual model is a high level view, refers to all the objects and relationships between these objects
Nick: higher level objects in accessibility evaluation are
Nick: 1. HTML_related Objects 2. Evaluation-related objects
Nick: HTML_related Objects are classifed into 4 objects - element, element group, web page and web site
Nick: HTML_related objects are more straight forward
Ncik: Evaluation-related objects are collection of Objects
Nick: 1. accessibility rule
Nick: 2. rule result - is the result of single rule
Nick: 3. evaluation result - is aggregation of all the rule results
Nick: 4. ruleset - is a WCAG Transitional ot WCAG Strict
Nick: Further breakdown of evaluation- related objects
Nick: 2. rule result
Nick: The model has two types of rules a. required b. recommended
Nick: rule results that are common for the both required and recommended rule types are pass, manual check and not applicable
Nick: rule result that are specific to "required" type are violation
Nick: and it is a "warning" for the "recommended" type
Nick: 3. evaluation result
Nick: rules are evaluated in various ways. One way is to evaluate single rule and then comes the aggregation of rule results:
Nick: 1.aggregating all the results for all the rules which apply to each element
Nick: 2. aggregating all the rules apply to all the element groups
Nick: example of element group would be image, area and canvas
Nick: 3. results related to page . example: title of the page, landmark
Nick: 4. site - aggregation of all the page related rule results
Marc: http://www.w3.org/TR/WCAG-EM/
Marc: http://www.w3.org/TR/WCAG-EM/#tools
Nick: What si the relationship of an accessibility rule to a technique?
Nick: For a simpler rule it is pretty straight farwrd. There is a one-one mapping from rule to technique
Nick: on the other hand some rules has to have multiple techniques to satisfy the requirement
jon: http://www.w3.org/WAI/WCAG20/quickref/#qr-minimize-error-cues