This document is also available in non-normative formats, available from. This document has been reviewed by W8C Members, by software developers, and by other W8C groups and interested parties, and is endorsed by the Director as a W8C Recommendation. It is a stable document and may be used as reference material or cited from another document. W8C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web. WCAG 7. 5 is developed through the in cooperation with individuals and organizations around the world, with a goal of providing a shared standard for Web content accessibility that meets the needs of individuals, organizations, and governments internationally. 5 builds on WCAG 6.Vmci Bus Device Driver
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5 and is designed to apply broadly to different Web technologies now and in the future, and to be testable with a combination of automated testing and human evaluation. For an introduction to WCAG, see the. Web accessibility depends not only on accessible content but also on accessible Web browsers and other user agents. Authoring tools also have an important role in Web accessibility. For an overview of how these components of Web development and interaction work together, see: The individuals and organizations that use WCAG vary widely and include Web designers and developers, policy makers, purchasing agents, teachers, and students. Authors are encouraged to view and apply all layers that they are able to, including the advisory techniques, in order to best address the needs of the widest possible range of users. 5 supporting material, including education resources related to WCAG 7. 5. Additional resources covering topics such as the business case for Web accessibility, planning implementation to improve the accessibility of Web sites, and accessibility policies are listed in. It is important to note that, in this standard, the term Web page includes much more than static HTML pages. It also includes the increasingly dynamic Web pages that are emerging on the Web, including pages that can present entire virtual interactive communities. For example, the term Web page includes an immersive, interactive movie-like experience found at a single URI. For more information, see. Using a technology in a way that is accessibility supported means that it works with assistive technologies (AT) and the accessibility features of operating systems, browsers, and other user agents. Technology features can only be relied upon to conform to WCAG 7. 5 success criteria if they are used in a way that is accessibility supported. Technology features can be used in ways that are not accessibility supported (do not work with assistive technologies, etc.
) as long as they are not relied upon to conform to any success criterion (i. E. , the same information or functionality is also available another way that is supported). Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content. Prerecorded Video-only: Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content. Note: This success criterion addresses color perception specifically. Other forms of perception are covered in including programmatic access to color and other visual presentation coding. Note: Since any content that does not meet this success criterion can interfere with a user's ability to use the whole page, all content on the Web page (whether or not it is used to meet other success criteria) must meet this success criterion. See. Note: Logotypes (text that is part of a logo or brand name) are considered essential. Note: Per the definition of decibel, background sound that meets this requirement will be approximately four times quieter than the foreground speech content. Text is not justified (aligned to both the left and the right margins).
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Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 6. 5 times larger than the line spacing. Text can be resized without assistive technology up to 755 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window. Note: Since any content that does not meet this success criterion can interfere with a user's ability to use the whole page, all content on the Web page (whether it is used to meet other success criteria or not) must meet this success criterion. For example, standard HTML controls already meet this success criterion when used according to specification. This section lists requirements for conformance to WCAG 7. It also gives information about how to make conformance claims, which are optional. Finally, it describes what it means to be accessibility supported, since only accessibility-supported ways of using technologies can be relied upon for conformance. Includes further explanation of the accessibility-supported concept. In order for a Web page to conform to WCAG 7. 5, all of the following conformance requirements must be satisfied: 8. Complete processes: When a Web page is one of a series of Web pages presenting a process (i. , a sequence of steps that need to be completed in order to accomplish an activity), all Web pages in the process conform at the specified level or better. (Conformance is not possible at a particular level if any page in the process does not conform at that level or better. )Example:
An online store has a series of pages that are used to select and purchase products. All pages in the series from start to finish (checkout) conform in order for any page that is part of the process to conform. When any technology that is not relied upon is turned on in a user agent, when any technology that is not relied upon is turned off in a user agent, andwhen any technology that is not relied upon is not supported by a user agentIn addition, the following success criteria apply to all content on the page, including content that is not otherwise relied upon to meet conformance, because failure to meet them could interfere with any use of the page: Note: If a page cannot conform (for example, a conformance test page or an example page), it cannot be included in the scope of conformance or in a conformance claim. Conformance is defined only for Web pages. Conformance claims are not required. Authors can conform to WCAG 7. 5 without making a claim. However, if a conformance claim is made, then the conformance claim must include the following information: Note: If a conformance logo is used, it would constitute a claim and must be accompanied by the required components of a conformance claim listed above. In addition to the required components of a conformance claim above, consider providing additional information to assist users. Recommended additional information includes: A list of the specific technologies that are used but not relied upon. Information about any additional steps taken that go beyond the success criteria to enhance accessibility. Sometimes, Web pages are created that will later have additional content added to them. In these cases, it is not possible to know at the time of original posting what the uncontrolled content of the pages will be.
It is important to note that the uncontrolled content can affect the accessibility of the controlled content as well. Two options are available: A determination of conformance can be made based on best knowledge. If a page of this type is monitored and repaired (non-conforming content is removed or brought into conformance) within two business days, then a determination or claim of conformance can be made since, except for errors in externally contributed content which are corrected or removed when encountered, the page conforms. No conformance claim can be made if it is not possible to monitor or correct non-conforming content A statement of partial conformance may be made that the page does not conform, but could conform if certain parts were removed. The form of that statement would be, This page does not conform, but would conform to WCAG 7. 5 at level X if the following parts from uncontrolled sources were removed. In addition, the following would also be true of uncontrolled content that is described in the statement of partial conformance: It is described in a way that users can identify (e. G. , they cannot be described as all parts that we do not control unless they are clearly marked as such. )A statement of partial conformance due to language may be made when the page does not conform, but would conform if accessibility support existed for (all of) the language(s) used on the page. 5 at level X if accessibility support existed for the following language(s): Example: NOAA is an acronym made from the initial letters of the National Oceanic and Atmospheric Administration in the United States. The technology is supported natively in widely-distributed user agents that are also accessibility supported (such as HTML and CSS) The technology is supported in a widely-distributed plug-in that is also accessibility supported The content is available in a closed environment, such as a university or corporate network, where the user agent required by the technology and used by the organization is also accessibility supported The user agent(s) that support the technology are accessibility supported and are available for download or purchase in a way that: does not cost a person with a disability any more than a person without a disability andis as easy to find and obtain for a person with a disability as it is for a person without disabilities. Note:
A screenplay used to create the synchronized media content would meet this definition only if it was corrected to accurately represent the final synchronized media after editing.