Equal Access Accessibility Checker ACT Implementation

Implemented Rules

About Equal Access Accessibility Checker Results

ACT rule results were generated using the latest accessibility-checker from NPM using the ACT test driver. Results were created using the preview archive and the IBM_Accessibility policy. Mappings from ACT Rules to Accessibility Checker rule ids and reason codes can be found in the act property of rule definitions. Results indicate the rule ids and reason codes related to the ACT rule are generated in the following format:

RuleId1:ReasonCode1,ReasonCode2|RuleId2:ReasonCode3,ReasonCode4.

Results in this page are taken from a public test report published by IBM Accessibility. Data is published using the EARL+JSON-LD data format.

Implementation Details

autocomplete attribute has valid value

This rule is implemented by Equal Access Accessibility Checker using the WCAG21_Input_Autocomplete:Pass_0,Fail_1,Fail_2,Fail_attribute_incorrect procedure. The implementation is fully consistent with the autocomplete attribute has valid value WCAG 2 rule. It covers 20 of the 21 examples. For 1 example no results were reported. This can happen when examples are newer then the test results. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

*: These examples are not yet approved for the rule. Results on these outcomes are not taken into consideration determining the consistency and coverage.

Button has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Input_ExplicitLabel:Pass_0,Fail_1,Fail_2 procedure. The implementation is fully consistent with the Button has non-empty accessible name WCAG 2 rule. It covers all 17 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Element with lang attribute has valid language tag

This rule is implemented by Equal Access Accessibility Checker using the element_lang_valid:Pass_0,Fail_1,Fail_2 procedure. The implementation is fully consistent with the Element with lang attribute has valid language tag WCAG 2 rule. It covers all 19 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

*: These examples are not yet approved for the rule. Results on these outcomes are not taken into consideration determining the consistency and coverage.

Element marked as decorative is not exposed

This rule is implemented by Equal Access Accessibility Checker using the aria_attribute_allowed:Pass,Fail_invalid_role_attr,Fail_invalid_implicit_role_attr procedure. The implementation is partially consistent with the Element marked as decorative is not exposed WCAG 2 rule. It covers all 10 examples. The implementation reports different success criteria as failed from what is expected by this rule. See understanding ACT consistency.

Form field has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Input_ExplicitLabel:Pass_0,Fail_1,Fail_2 procedure. The implementation is fully consistent with the Form field has non-empty accessible name WCAG 2 rule. It covers all 19 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

*: These examples are not yet approved for the rule. Results on these outcomes are not taken into consideration determining the consistency and coverage.

HTML page has lang attribute

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Html_HasLang:Pass_0,Fail_3, and html_lang_valid:Pass_0,Fail_1 procedures. Failed examples should be failed by at least one of these procedures. The implementation is fully consistent with the HTML page has lang attribute WCAG 2 rule. It covers all 7 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

HTML page lang attribute has valid language tag

This rule is implemented by Equal Access Accessibility Checker using the html_lang_valid:Pass_0,Fail_1,Fail_2,Fail_3 procedure. The implementation is fully consistent with the HTML page lang attribute has valid language tag WCAG 2 rule. It covers all 7 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

HTML page lang and xml:lang attributes have matching values

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Html_HasLang:Pass_0,Fail_4,Fail_5 procedure. The implementation is fully consistent with the HTML page lang and xml:lang attributes have matching values WCAG 2 rule. It covers all 12 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

HTML page has non-empty title

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Doc_HasTitle:Pass_0,Fail_1,Fail_2,Fail_3 procedure. The implementation is fully consistent with the HTML page has non-empty title WCAG 2 rule. It covers all 11 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Image button has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Input_ExplicitLabelImage:Pass_0,Pass_1,Pass_2,Fail, and Rpt_Aria_ValidIdRef:Pass_0,Fail_1 procedures. Failed examples should be failed by at least one of these procedures. The implementation is fully consistent with the Image button has non-empty accessible name WCAG 2 rule. It covers all 12 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Image has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the HAAC_Aria_ImgAlt:Pass_0,Fail_1,Fail_2,Fail_3 procedure. The implementation is partially consistent with the Image has non-empty accessible name WCAG 2 rule. It covers 15 of the 18 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Letter spacing in style attributes is not !important

This rule is implemented by Equal Access Accessibility Checker using the text_spacing_valid:pass,fail_letter_spacing_style,fail_word_spacing_style,fail_line_height_style procedure. The implementation is fully consistent with the Letter spacing in style attributes is not !important WCAG 2 rule. It covers all 16 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Link has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_A_HasText:Pass_0,Fail_1 procedure. The implementation is partially consistent with the Link has non-empty accessible name WCAG 2 rule. It covers all 28 examples. The implementation reports different success criteria as failed from what is expected by this rule. See understanding ACT consistency.

Word spacing in style attributes is not !important

This rule is implemented by Equal Access Accessibility Checker using the text_spacing_valid:pass,fail_letter_spacing_style,fail_word_spacing_style,fail_line_height_style procedure. The implementation is fully consistent with the Word spacing in style attributes is not !important WCAG 2 rule. It covers all 16 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

SVG element with explicit role has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the HAAC_Aria_ImgAlt:Pass_0,Fail_2, and HAAC_Aria_SvgAlt:Pass_0,Fail_2 procedures. Failed examples should be failed by at least one of these procedures. The implementation is fully consistent with the SVG element with explicit role has non-empty accessible name WCAG 2 rule. It covers all 10 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Element with presentational children has no focusable content

This rule is implemented by Equal Access Accessibility Checker using the aria_descendant_valid:pass,potential_child_implicit_role,fail_child_explicit_role procedure. The implementation is fully consistent with the Element with presentational children has no focusable content WCAG 2 rule. It covers 5 of the 7 examples. On 2 examples the implementation cannot tell the outcome. This is often because of technical limitations in tools. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Headers attribute specified on a cell refers to cells in the same table element

This rule is implemented by Equal Access Accessibility Checker using the table_headers_ref_valid:Pass_0,Fail_1,Fail_2,Fail_3,Fail_4 procedure. The implementation is fully consistent with the Headers attribute specified on a cell refers to cells in the same table element WCAG 2 rule. It covers all 18 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

*: These examples are not yet approved for the rule. Results on these outcomes are not taken into consideration determining the consistency and coverage.

Line height in style attributes is not !important

This rule is implemented by Equal Access Accessibility Checker using the text_spacing_valid:pass,fail_letter_spacing_style,fail_word_spacing_style,fail_line_height_style procedure. The implementation is fully consistent with the Line height in style attributes is not !important WCAG 2 rule. It covers all 21 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Meta viewport allows for zoom

This rule is implemented by Equal Access Accessibility Checker using the meta_viewport_zoom:Pass_0,Potential_1 procedure. The implementation is partially consistent with the Meta viewport allows for zoom WCAG 2 rule. It covers all 11 examples. The implementation reports different success criteria as failed from what is expected by this rule. See understanding ACT consistency.

Object element rendering non-text content has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Object_HasText:pass,fail_no_text_alternative procedure. The implementation is fully consistent with the Object element rendering non-text content has non-empty accessible name WCAG 2 rule. It covers all 18 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

ARIA attribute is defined in WAI-ARIA

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_ValidProperty:Pass_0,Fail_1 procedure. The implementation is fully consistent with the ARIA attribute is defined in WAI-ARIA proposed rule. It covers all 7 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

ARIA required context role

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_RequiredParent_Native_Host_Sematics:Pass_0,Fail_1 procedure. The implementation is partially consistent with the ARIA required context role proposed rule. It covers 14 of the 15 examples. The implementation reports different success criteria as failed from what is expected by this rule. See understanding ACT consistency.

ARIA required owned elements

This rule is implemented by Equal Access Accessibility Checker using the aria_child_valid:Pass,Fail_no_child,Fail_invalid_child procedure. The implementation is partially consistent with the ARIA required owned elements proposed rule. It covers all 17 examples. The implementation reports different success criteria as failed from what is expected by this rule. See understanding ACT consistency.

ARIA state or property is permitted

This rule is implemented by Equal Access Accessibility Checker using the aria_attribute_allowed:Pass,Fail_invalid_role_attr,Fail_invalid_implicit_role_attr procedure. The implementation is partially consistent with the ARIA state or property is permitted proposed rule. It covers 15 of the 16 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

ARIA state or property has valid value

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_ValidPropertyValue:Pass_0,Fail_1 procedure. The implementation is partially consistent with the ARIA state or property has valid value proposed rule. It covers 22 of the 24 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Id attribute value is unique

This rule is implemented by Equal Access Accessibility Checker using the RPT_Elem_UniqueId:Pass_0,Fail_1,Fail_2 procedure. The implementation is fully consistent with the Id attribute value is unique proposed rule. It covers all 10 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Iframe element has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG20_Frame_HasTitle:Pass_0,Fail_1 procedure. The implementation is partially consistent with the Iframe element has non-empty accessible name proposed rule. It covers 9 of the 10 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Menuitem has non-empty accessible name

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_WidgetLabels_Implicit:Pass_0,Fail_1 procedure. The implementation is fully consistent with the Menuitem has non-empty accessible name proposed rule. It covers all 8 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Role attribute has valid value

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_ValidRole:Pass_0,Fail_2,Potential_1 procedure. The implementation is fully consistent with the Role attribute has valid value proposed rule. It covers 9 of the 10 examples. On 1 example the implementation cannot tell the outcome. This is often because of technical limitations in tools. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Element with role attribute has required states and properties

This rule is implemented by Equal Access Accessibility Checker using the Rpt_Aria_RequiredProperties:Pass_0,Fail_1, and combobox_popup_reference:Pass_1.0_expanded,Pass_1.0_collapsed,Pass_1.2_expanded,Pass_1.2_collapsed,Fail_1.2_missing_controls,Fail_1.2_popup_reference_missing procedures. Failed examples should be failed by at least one of these procedures. The implementation is fully consistent with the Element with role attribute has required states and properties proposed rule. It covers all 15 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Text has minimum contrast

This rule is implemented by Equal Access Accessibility Checker using the IBMA_Color_Contrast_WCAG2AA_PV:Pass_0,Potential_1 procedure. The implementation is partially consistent with the Text has minimum contrast proposed rule. It covers 21 of the 32 examples. On 4 examples the implementation cannot tell the outcome. This is often because of technical limitations in tools. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.

Visible label is part of accessible name

This rule is implemented by Equal Access Accessibility Checker using the WCAG21_Label_Accessible:Pass_0,Fail_1 procedure. The implementation is fully consistent with the Visible label is part of accessible name proposed rule. It covers all 13 examples. The implementation correctly reports which success criteria are failed by this rule. See understanding ACT consistency.