Re: OAA rule set and Conceptual Model for Web Accessibility Evaluation

Hi Jemma,
This is going to be very useful for our first draft work that's coming up
next. Thanks for sharing!

W

On Tue, Oct 18, 2016 at 12:48 AM, Ku, Ja Eun <jku@illinois.edu> wrote:

> These are recommended resources by Dr. Gunderson, University of Illinois
> for ACT “framework” and Shadi at W3C suggested me to share these in the
> list.
>
>
>
>
>
> 1)       Evaluation rule set
>
> *https://fae.disability.illinois.edu/rulesets/wcag/
> <https://fae.disability.illinois.edu/rulesets/wcag/>*
>
> More info: http://disability.illinois.edu/accessible-it-group/web-
> accessibility/evaluation-and-design-tools
>
>
>
> 2)       Conceptual Model for Web Accessibility Evaluation
>
> https://trac.ainspector.org/design/wiki/interaction-
> design/conceptual-model
>
>
>
> The text of the link:
>
> Conceptual Model for Web Accessibility Evaluation
>
>
>
> A conceptual model describes all of the objects, actions and concepts, and
> their relationships within a system.
>
>
>
> A. Web resource objects
>
>
>
>    1.  element: an HTML element, its attributes and properties
>
>    2.  page: an HTML document, including its top-level element
>
>
>
> B. Web resource definitions
>
>
>
>    1.  element definition: an HTML element name (or wildcard denoting any
> element) and an optional predicate, e.g. input[type="text"]
>
>    2.  target elements: the set of HTML elements defined by one or more
> element definitions
>
>    3.  target resources: the set of web resources to which a rule is
> applied (typically target elements but may also include the top-level page)
>
>
>
> C. Evaluation objects
>
>
>
>    1.  accessibility rule: the requirements that one or more target
> resources must meet
>
>    2.  rule category: a grouping of rules with related accessibility
> requirements or target resources
>
>    3.  rule mapping: the membership properties of an accessibility rule
> within a ruleset (e.g. whether a rule is required or recommended)
>
>    4.  ruleset: a collection of rule mappings tailored for a particular
> audience and with a set of standards compliance goals (e.g. WCAG 2.0)
>
>
>
> D. Evaluation actions and results
>
>
>
>    1.  rule evaluation: the application of an accessibility rule to its
> target resources
>
>    2.  result value: one of the following: violation, warning, pass,
> manual check, not applicable
>
>       *   a rule mapping specifies whether a rule is required or
> recommended
>
>       *   violation is the result value when a required rule fails
>
>       *   warning is the result value when a recommended rule fails
>
>       *   pass, manual check and not applicable values are common to both
> required and recommended rules
>
>    3.  element result: the result of a rule evaluation with respect to one
> of its target elements
>
>    4.  rule result: the aggregate result of a rule evaluation with respect
> to its target resources (all of its target elements and/or the entire page)
>
>    5.  summary result: an aggregation of element and/or rule results
> (organized and quantified in various ways, e.g. percentage of pass results)
>
>
>
> ________________________________
>
> Further breakdown of evaluation objects
>
> accessibility rule
>
>
>
>    *   title: a concise or abbreviated statement of the rule definition
>
>    *   definition: the markup patterns or requirements that must be
> present in, or met by, the target resources
>
>    *   target resources: the set of web resources to which this rule
> applies
>
>    *   scope: element or page: specifies the level of the target resources
> (which affects how the rule result is calculated and reported)
>
>    *   purpose: an explanation of why the rule is important
>
>    *   techniques: the specific markup patterns that are required or
> recommended for passing the rule
>
>    *   manual checks: the list of questions the user needs to ask when
> performing a manual check
>
>    *   corrective action: concise description of what needs to be done to
> remedy a failure or perform a manual check
>
>    *   element properties: the specific properties of the target elements
> to which the rule definition pertains
>
>    *   category: the rule category to which the rule belongs
>
>    *   primary requirement id: reference to the most pertinent WCAG 2.0
> Success Criterion for this rule
>
>    *   related requirement ids: list of references to other WCAG 2.0
> Success Criteria, ordered by pertinence
>
>    *   language dependency: the languages upon which the rule depends, if
> any
>
>    *   informational links: links to examples, articles or other resources
> relating to the rule definition and/or techniques
>
>    *   last updated: date of most recent changes
>
>    *   id: unique identifier for the rule (referenced by rule mappings,
> element results and rule results)
>
>
>
> rule category
>
>
>
>    *   a grouping of rules with related accessibility requirements or
> target resources
>
>    *   informational links: links to further documentation re. the set of
> rules and their relationships
>
>    *   examples of categories based on rules related by accessibility
> requirements: Color Contrast, Landmarks, Language
>
>    *   examples of categories based on rules related by target resources:
> Images/Media, Controls, Headings, Links, Lists, Tables, Abbr/Acronym
>
>
>
> rule mapping
>
>
>
>    *   type: required or recommended
>
>    *   enabled: true or false
>
>    *   rule id: identifier of the accessibility rule to which the above
> properties are being mapped
>
>
>
> ruleset
>
>
>
>    *   a collection of rule mappings tailored for a particular audience
> and with a set of standards compliance goals (e.g. WCAG 2.0, Levels A & AA)
>
>    *   Note: via rule mappings, the rule type (required or recommended)
> for any given rule can vary from one ruleset to another
>
>    *   Note: via rule mappings, one ruleset may include rules that other
> rulesets omit and vice versa (using the "enabled" property)
>
>
>
> Further breakdown of evaluation results
>
> element result
>
>
>
>    *   the element name and its document position
>
>    *   the result value at the element level
>
>    *   a result message, including a corrective action when appropriate
>
>    *   pertinent element properties and values, which may help identify
> the element
>
>    *   Note: the element result value may be one of the evaluation result
> values defined above or hidden
>
>       *   for example, for rules with element scope, the element-level
> result value may be hidden, indicating that the element was not visible to
> assistive technologies
>
>    *   rule id: identifier of the accessibility rule that was applied to
> obtain this result
>
>
>
> rule result
>
>
>
>    *   the result value at the rule level
>
>    *   a result message, including a corrective action when appropriate
>
>    *   the set of element results used in the overall determination of the
> rule result
>
>    *   page-level properties and their values as applicable (when the rule
> has page scope)
>
>    *   rule id: identifier of the accessibility rule that was applied to
> obtain this result
>
>
>
> summary result
>
>
>
>    *   at the lowest level, a single rule result
>
>    *   aggregation of rule results by web resource objects:
>
>       *   element: all results for all rules that apply to a particular
> element; all results for all rules that apply to a set of elements (e.g.
> all images)
>
>       *   page: all results for all page-level rules; all results for all
> element-level rules that apply to any elements on the page
>
>    *   aggregation of rule results at page level by WCAG success criteria
>
>    *   aggregation of rule results at page level by WCAG Level (A, AA, AAA)
>
>    *   aggregation of rule results at page level by rule type (required,
> recommended)
>
>    *   a list of all rules that were not evaluated (enabled = false)
>
>
>
> JaEun Jemma Ku, PhD
>
> Internet Applications Systems Specialist
>
> University library
>
> University of Illinois at Urbana-Champaign
>
> 424 Library, M/C 522
>
> 1408 West Gregory Dr.
>
> Urbana, IL 61801
>
> 1-217-244-2145
>
> jku@illinois.edu
>
> https://publish.illinois.edu/a11yfirst/
>
>
>



-- 
*Wilco Fiers* - Senior Accessibility Engineer