Page 48 - GiGW3

5. Guidelines

(d) Sensory: If non-text content is primarily intended to create a specific sensory presented to users, then it is implemented in a way that it can be ignored by assistive Statement: Captions are provided for all pre-recorded audio Statement: Captions are p

experience, then text alternatives at least provide descriptive identification of the non-text technology (by using blank alt attribute). content in synchronised media, except when the media is a in synchronised media.
content; Reference: WCAG 2.1 - 1.1.1
(e) CAPTCHA: If the purpose of non-text content is to confirm that content is being Evaluator action: The evaluator will test it manually and by using the accessibility extension to media alternative for text and is clearly labelled as such
Benefits: Enables people w
accessed by a person rather than a computer, then text alternatives that identify and browser/ accessibility plug-in/web accessibility tool to check the conformity of this checkpoint. Government organisation a
describe the purpose of the non-text content are provided and alternative forms of Benefit: This enables people who are deaf or hard of hearing to watch synchronised media audio content.
CAPTCHA using output modes for different types of sensory perception are provided to Statement: For pre-recorded audio-only and pre-recorded presentations. Developer action: Provide
accommodate different disabilities; and video-only media, the following are true, except when the audio Government organisation action: The government organisations must create captions to provide Reference: WCAG 2.1 - 1.2
(f) Decoration, Formatting, Invisible: If non-text content is pure decoration, is used only for the part of the content available via the audio track. Captions not only include dialogue but identify

visual formatting, or is not presented to users, then it is implemented in a way that it can be or video is a media alternative for text and is clearly who is speaking and include non-speech information conveyed through sound, including Evaluator action: The eva
ignored by assistive technology. labelled as such: meaningful sound effects.
Benefit: Conformity makes information conveyed by non-text content accessible through the use Developer action: Ensure that the captions are available with audio content. Statement: Audio descript

of a text alternative. For example, a person who cannot see a picture can have the text alternative Reference: WCAG 2.1 - 1.2.2 pre-recorded video conten
(a) Pre-recorded Audio-only: An alternative for time-based media is provided that
read aloud using synthesised speech. A person who cannot hear an audio file can have the text Evaluator action: The evaluator will test the it manually to check the conformity of this checkpoint.
presents equivalent information for pre-recorded audio-only content; and
alternative displayed so that he or she can read it.
(b) Pre-recorded Video-only: Either an alternative for time-based media or an audio track Benefits: Provides people
Government organisation action: A meaningful explanatory text equivalent must be specified for Statement: An alternative for time-based media or audio
is provided that presents equivalent information for pre-recorded video-only content. synchronised media presen
images and other non-text content. The description should summarise the content or purpose of description of the pre-recorded video content is provided information about actions

the image. For example, to use the description ‘Picture’ to explain a graphic does not serve any
he Success criteria under this section have been adopted purpose. Benefit: The intent of this Success Criterion is to make information conveyed by pre-recorded for synchronised media, except when the media is a are not described or spok

from W3C Web content accessibility guidelines Developer action: For images text equivalent can be provided by using the ALT attribute. The ALT audio-only and pre-recorded video-only content available to all users. Alternatives for time-based media alternative for text and is clearly labelled as such. Government organisation a
Developer action: Provide
media that are text based make information accessible because text can be rendered through any
(https://www.w3.org/TR/WCAG21/). Developers are advised text for an image is displayed before the image is fully downloaded. It is the main source of image sensory modality (for example, visual, auditory or tactile) to match the needs of the user. Reference: WCAG 2.1 - 1.2
information for users of text-only browsers, users of browsers with graphics turned off and users Benefit: provides people who are blind or visually impaired access to the visual information in a
to refer to the W3C website for the complete description Government organisation action: Create the alternate for time-based media, i.e, transcript in Evaluator action: The eva
who are sight impaired. The following situations are exceptions: synchronised media presentation
and techniques to meet the success criteria. (a) If the non-text content is a control or accepts input e.g., a submit button then it must case audio only and transcript or audio track in case of video only content. Captions are not
needed when the synchronised media is, itself, an alternate presentation of information that is also Government organisation action: The government organisations must provide audio description Statement: Information, s
have a name describing the purpose of the control; of the video content. The audio description augments the audio portion of the presentation with
presented via text on the Web page conveyed through presenta
Statement: All non-text content that is presented to the user has a (b) If the non-text content is time-based media (audio/video) then the text equivalent Developer action: Make provision to provide alternatives for time-based media. the information needed when the video portion is not available. Alternatively, all of the information
provides a descriptive identification of the same; in the synchronised media (both visual and auditory) may be provided in text form. If all of the determined or are availab
text alternative that serves the equivalent purpose, except (c) If non-text content is a test or exercise that would be invalid if presented in text, then Reference: WCAG 2.1 - 1.2.1 information in the video track is already provided in the audio track, no audio description is

for the situations listed below: text alternatives at least provide descriptive identification of the non-text content; Evaluator action: The evaluator will test it manually to check the conformity of this checkpoint. necessary. Benefits: Sighted users pe

(d) If non-text content is primarily intended to create a specific sensory experience, Developer action: Developer must provide provision for publishing the alternative for time-based on a page (page headings

(a) Controls, Input: If non-text content is a control or accepts user input, then it has a name then text alternatives at least provide descriptive identification of the non-text content; media or audio description of the pre-recorded video content fields may be positioned a
that describes its purpose (Refer to Success Criterion 4.1.2 for additional requirements for (e) CAPTCHA: If the purpose of non-text content is to confirm that content is being Reference: WCAG 2.1 - 1.2.3 used to indicate related
controls and content that accepts user input); accessed by a person rather than a computer, then text alternatives that identify and Evaluator action: The evaluator will test the it manually to check the conformity of this checkpoint. advantage of these cues.
(b) Time-Based Media: If non-text content is time-based media, then text alternatives at describe the purpose of the non-text content are provided and alternative forms of preserved even when the p

least provide descriptive identification of the non-text content (Refer to Guideline 1.2 for CAPTCHA using output modes for different types of sensory perception are provided to a screen reader or CSS is
additional requirements for media); accommodate different disabilities; and
(f) If non-text content is pure decoration, is used only for visual formatting, or is not

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