Part of Item:
Comment Type: editorial
Comment (including rationale for proposed change):
Success criteria 1.1.1 is difficult to parse. When using the phrase “One of the following is true� to a criteria where several of the following can be true, if different types of non-text content are used, the criteria can be misinterpreted. DSI recommend that the phrasing of parallel logical conditions should be consistent across all success criteria. In 2.2.1 the phrase is used correctly.
Proposed Change:
We mean that the success criteria of 1.1.1 should be rephrased or split up into several success criteria.
We have modified 1.1.1 as follows:
1.1.1 Non-text Content: All non-text content has a text alternative that presents equivalent information, except for the situations listed below.
* Controls-Input: If non-text content is a control or accepts user input, then it has a name that describes its purpose. (See also Guideline 4.1 Maximize compatibility with current and future user agents, including assistive technologies )
* Media, Test, Sensory: If non-text content is multimedia , live audio-only or live video-only content, a test or exercise that must be presented in non-text format , or primarily intended to create a specific sensory experience , then text alternatives at least identify the non-text content with a descriptive text label. (For multimedia, see also Guideline 1.2 Provide synchronized alternatives for multimedia .)
* CAPTCHA: If the purpose of non-text content is to confirm that content is being accessed by a person rather than a computer, then text alternatives that identify and describe the purpose of the non-text content are provided and alternative forms in different modalities are provided to accommodate different disabilities.
* Decoration, Formatting, Invisible: If non-text content is pure decoration, or used only for visual formatting, or if it is not presented to users, then it is implemented such that it can be ignored by assistive technology