The Functional Accessibility Evaluator and AInspector WCAG use the OpenAjax Evaluation Library and Rulesets. The ruleset section of FAE provides details of the OpenAjax Evaluation Library rules and rulesets.

HTML4 Legacy Techniques

WCAG 2.0 Level A and AA requirements primarily using HTML4 techniques, but allows HTML5 and ARIA accessibility techniques.

Evaluation of W3C Web Content Accessibility Guidelines 2.0 Level A and AA conformance using HTML4 accessibility techniques, but allows for the use of HTML5 and ARIA techniques. ARIA landmarks are NOT required, but if used must follow landmark and sectioning element requirements as outlined in HTML5 and ARIA. The ruleset does NOT require the use of ARIA widget roles for identifying and describing interactive elements (e.g. popup menus, grids, trees, etc...) that cannot be not described by the native semantics of HTML4 and HTML5 form control and link elements. This means the developer will need to do more manual checking and have a high level understanding of assistive technology to describe widgets typically using offscreen text and/or small images (e.g. with ALT text) to define and manage the roles, properties and states of interactive elements.

  • Version: 1.1.0
  • Total Rules: 122
  • Required Rules: 0
  • Recommended Rules: 122

HTML5 and ARIA Techniques

WCAG 2.0 Level A and AA requirements using ARIA and HTML5 accessibility features.

Evaluation of W3C Web Content Accessibility Guidelines 2.0 Level A and AA conformance using HTML5 and ARIA accessibility techniques. ARIA Landmarks are required for the identification and labeling of the sections of content on a web page. The ruleset requires the use of ARIA widget roles for identifying and describing interactive elements (e.g. popup menus, grids, trees, etc...) that cannot be not described by the native semantics of HTML5 form control and links elements.

  • Version: 1.1.0
  • Total Rules: 132
  • Required Rules: 120
  • Recommended Rules: 12

Ruleset Comparison

Landmarks

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Landmark 1 main landmark: at least one A 2.4.1 - Required
Landmark 10 navigation landmark: restrictions A 1.3.1 Recommended Required
Landmark 11 main landmark: must be top-level A 1.3.1 Recommended Required
Landmark 12 contentinfo landmark: must be top-level A 1.3.1 Recommended Required
Landmark 13 contentinfo landmark: restrictions A 1.3.1 Recommended Required
Landmark 14 search landmark: restrictions A 1.3.1 Recommended Required
Landmark 15 form landmark: restrictions A 1.3.1 Recommended Required
Landmark 16 region landmark must have accessible name A 1.3.1 Recommended Required
Landmark 17 Landmarks must be uniquely identifiable A 1.3.1 Recommended Required
Landmark 18 Landmarks must identify content regions A 1.3.1 Recommended Required
Landmark 19 complementary landmark: must be top level A 1.3.1 Recommended Required
Landmark 2 All content must be contained in landmarks A 1.3.1 - Required
Landmark 3 navigation landmark: at least one A 2.4.1 - Required
Landmark 4 banner landmark: identifies branding content A 2.4.1 - Required
Landmark 5 banner landmark: no more than one A 2.4.1 Recommended Required
Landmark 6 contentinfo landmark: identifies admin content A 2.4.1 - Required
Landmark 7 contentinfo landmark: no more than one A 2.4.1 Recommended Required
Landmark 8 banner landmark: must be top-level A 1.3.1 Recommended Required
Landmark 9 banner landmark: restrictions A 1.3.1 Recommended Required

Headings

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Heading 1 Page must have h1 element A 2.4.1 Recommended Recommended
Heading 2 h1 must be in main or banner landmark AA 2.4.6 Recommended Recommended
Heading 3 Sibling headings must be unique AA 2.4.6 Recommended Recommended
Heading 5 Headings must be properly nested A 1.3.1 Recommended Required
Heading 6 Headings must have text content A 1.3.1 Recommended Recommended
Heading 7 First landmark heading h2 A 1.3.1 - Recommended
Heading 8 Headings nested in landmarks A 1.3.1 - Required
Role 10 Overriding h1-h6 role semantics A 1.3.1 Recommended Required

Styles/Content

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Color 1 Text must exceed CCR threshold AA 1.4.3 Recommended Required
Color 2 Use of color A 1.4.1 Recommended Required
Frame 1 frame must have accessible name A 2.4.1 Recommended Required
Frame 2 iframe must have accessible name A 2.4.1 Recommended Required
HTML 1 Replace b and i elements A 4.1.1 - -
HTML 2 Replace marquee elements A 2.3.1 Recommended Required
Language 1 Page must use language code A 3.1.1 Recommended Required
Language 2 Identify language changes AA 3.1.2 Recommended Required
Layout 2 Do not nest layout tables A 1.3.2 Recommended Recommended
Layout 3 Verify aria-flowto supports reading order A 1.3.2 Recommended Required
List 1 Use semantic markup for lists A 1.3.1 Recommended Required
List 2 Provide list labels when appropriate AA 2.4.6 Recommended Recommended
Order 1 Reading order: CSS positioning A 1.3.2 Recommended Required
Resize 1 Resize text content AA 1.4.4 Recommended Required
Role 1 main element role semantics. A 1.3.1 Recommended Required
Role 11 li element group item semantics A 4.1.2 Recommended Required
Role 2 body element role semantics. A 1.3.1 Recommended Required
Role 3 ol and ul role grouping semantics A 4.1.2 Recommended Required
Role 4 article element role semantics A 1.3.1 Recommended Required
Role 5 section element role semantics A 1.3.1 Recommended Required
Role 6 Do not override nav element semantics. A 1.3.1 Recommended Required
Role 7 aside element role semantics A 1.3.1 Recommended Required
Role 8 Do not override header element role. A 1.3.1 Recommended Required
Role 9 Do not override footer element role. A 1.3.1 Recommended Required
Sensory 1 Not only shape, size and location A 1.3.3 Recommended Required

Images

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Image 1 Images must have alt text A 1.1.1 Recommended Required
Image 2 Alt text must summarize purpose A 1.1.1 Recommended Required
Image 3 Alt text must not include filename A 1.1.1 Recommended Required
Image 4 (English) Alt text no more than 100 characters A 1.1.1 Recommended Recommended
Image 5 Verify image is decorative A 1.1.1 Recommended Required
Image 6 Long description for complex images A 1.1.1 Recommended Required
Image 7 Use MathML for mathematical expressions A 1.1.1 Recommended Required
Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Focus 3 Target focus must be in content window A 3.2.1 Recommended Required
Link 1 Link text must describe the link target A 2.4.4 Recommended Required
Link 2 Link text must be unique A 2.4.4 Recommended Recommended
Role 12 a[href] element role semantics A 4.1.2 Recommended Required

Tables

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Layout 1 Layout tables must have meaningful sequence A 1.3.2 Recommended Required
Table 1 Data cells must have row/column headers A 1.3.1 Recommended Required
Table 2 Data tables must have name AA 2.4.6 Recommended Recommended
Table 3 Data tables must have description A 1.3.1 Recommended Recommended
Table 4 Data tables must have unique names A 1.3.1 Recommended Required
Table 5 Identify table markup as data or layout A 1.3.1 Recommended Required
Table 6 Header cells must be th elements A 1.3.1 Recommended Required
Table 7 Data cells must use headers attribute A 1.3.1 Recommended Required
Table 8 Name must be different than description A 1.3.1 - Required

Forms

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Control 1 Form controls must have labels A 3.3.2 Recommended Required
Control 10 Labels must be unique AA 2.4.6 Recommended Required
Control 11 submit and reset buttons must be unique AA 2.4.6 Recommended Required
Control 2 Image button must have alt. content A 3.3.2 Recommended Required
Control 3 Radio buttons must have grouping label A 3.3.2 Recommended Required
Control 4 buttons must have content A 3.3.2 Recommended Required
Control 5 id must be unique A 4.1.1 Recommended Required
Control 6 label must reference control A 3.3.2 Recommended Required
Control 7 label must have content A 3.3.2 Recommended Required
Control 8 fieldset must have one legend A 3.3.2 Recommended Required
Control 9 Verify title is the label. A 3.3.2 Recommended Required
Error 1 Information on invalid values A 3.3.1 Recommended Required
Error 2 Required form controls AA 3.3.3 Recommended Required
Error 4 Error correction suggestions AA 3.3.3 Recommended Required
Error 5 Prevent errors AA 3.3.4 Recommended Required
Focus 4 select must not change context A 3.2.2 Recommended Required
Focus 5 Forms submitted using buttons A 3.2.2 Recommended Required
Focus 6 checkbox/radio buttons changing context. A 3.2.2 - -
Role 13 select element role semantics A 4.1.2 Recommended Required
Role 14 textarea element role semantics A 4.1.2 Recommended Required

Widgets/Scripts

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Error 3 Required widgets AA 3.3.3 - Required
Widget 1 Widgets must have label A 4.1.2 Recommended Required
Widget 10 Value in range A 4.1.2 Recommended Required
Widget 11 Elements with event handlers must have roles A 4.1.2 Recommended Required
Widget 12 Widget labels must be descriptive AA 2.4.6 Recommended Required
Widget 13 Remove widget roles A 4.1.2 - -
Widget 14 Verify appropriate use of live region A 4.1.2 Recommended Required
Widget 2 onClick event handlers must have role A 4.1.2 - Required
Widget 3 role must be valid A 4.1.2 Recommended Required
Widget 4 ARIA values must be valid A 4.1.2 Recommended Required
Widget 5 ARIA attribute must be defined A 4.1.2 Recommended Required
Widget 6 Widgets must have properties A 4.1.2 Recommended Required
Widget 7 Widgets must have child roles A 4.1.2 Recommended Required
Widget 8 Widgets must have parent A 4.1.2 Recommended Required
Widget 9 Only one owner A 4.1.2 Recommended Required

Audio/Video

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Audio 1 audio must have alternative A 1.2.1 Recommended Required
Audio 2 object for audio must have alternative A 1.2.1 Recommended Required
Audio 3 embed for audio must have alternative A 1.2.1 Recommended Required
Audio 4 Pause, stop or mute audio A 1.4.2 Recommended Required
Video 1 video for video only must have alternative A 1.2.1 Recommended Required
Video 2 object for video only must have alternative A 1.2.1 Recommended Required
Video 3 embed for video only must have alternative A 1.2.1 Recommended Required
Video 4 video must have caption A 1.2.2 Recommended Required
Video 5 object for video must have captions A 1.2.2 Recommended Required
Video 6 embed for video must have captions A 1.2.2 Recommended Required
Video 7 video element must have audio description. A 1.2.3 Recommended Required
Video 8 object for video must have audio description. A 1.2.3 Recommended Required
Video 9 embed for video must have audio description A 1.2.3 Recommended Required

Keyboard

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Bypass 1 Skip to main content link A 2.4.1 Recommended Recommended
Focus 1 Focus order must be meaningful A 2.4.3 Recommended Required
Focus 2 Focus must be visible AA 2.4.7 Recommended Required
Keyboard 1 Widget roles require keyboard support A 2.1.1 Recommended Required
Keyboard 2 Interactive functionality must be keyboard operable A 2.1.1 Recommended Required
Keyboard 3 No keyboard trap A 2.1.2 Recommended Required

Timing

Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Timing 1 Control time limits A 2.2.1 Recommended Required
Timing 2 Control moving, blinking or auto-updating content A 2.2.2 Recommended Required
Timing 3 Flashing limits A 2.3.1 Recommended Required
Rule ID Summary Level SC HTML4 Legacy Techniques HTML5 and ARIA Techniques
Navigation 1 At least two ways of finding content AA 2.4.5 Recommended Required
Navigation 2 Consistent ordering of landmarks AA 3.2.3 Recommended Required
Navigation 3 Consistent ordering of h1 and h2 labels AA 3.2.3 Recommended Required
Navigation 4 Consistent labeling of landmarks AA 3.2.4 Recommended Required
Navigation 5 Consistent h1 and h2 page section labels AA 3.2.4 Recommended Required
Title 1 title must identify website and page A 2.4.2 Recommended Required
Title 2 h1 must match part of the title A 2.4.2 - -