The first step when determining appropriate alternative text for an image is to decide if the image presents content and if the image has a function. 3. Home > Blog > Section 508 Compliance Testing Tools & Checklists. Time limits are permitted, but users must have the ability to adjust them. Each version should be as conformant as possible. Identify input errors by describing the errors. Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1. Traceability to 508. 508 compliance is the law that law-people wrote up to try and begin to set some standards. Start and end tags that are missing a critical character in their formation, such as a closing angle bracket, or a mismatched attribute value quotation mark, are not complete. How to test. Bookmark this guide and refer to it whenever you’re developing new content, websites or digital tools. that conveys content has equivalent alternative text (alt, longdesc, or in the element context). Under Section 508, agencies must provide disabled employees and members of the public access to information that is comparable to access available to others. Frames that contain repetitive content can be used to meet 2.4.1, however, frames are obsolete in HTML5. When a web page is one of a series of web pages presenting a process (i.e., 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. (See Understanding accessibility support.). All images must have descriptions. Headings and labels describe topic or purpose. This is by no means a comprehensive guide, but a good starting point. For moving, blinking, scrolling, or auto-updating information, ALL of the following are true: Moving, blinking, scrolling: For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it, unless the movement, blinking, or scrolling is part of an activity where it is essential; and. Note 2: The alternate version does not need to be matched page for page with the original (e.g., the conforming alternate version may consist of multiple pages). Web pages have titles that describe topic or purpose. This usually occurs when external content is embedded within a page. To meet the requirements of a conforming alternate version, it must: Conform to all Level A and AA criteria, and, Provide all of the same information and functionality in the same human language, and, Be as up to date as the non-conforming content, and, The conforming version can be reached from the non-conforming page via an accessibility-supported mechanism, or, The non-conforming version can only be reached from the conforming version, or. Provide adequate labels and instructions to help users accurately complete form fields. Major topics are listed below in alphabetical order. Associate error descriptions with form fields using aria-describedby so that screen reader users know how to fix the problem. Identify the repetitive content on pages and the location of where a skip mechanism should land. Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds. But there’s no way to disassociate the alt text from the image. According to the 508 compliance team, the compliance requirements for a video are: 1. Review W3C's Alt Decision Tree for guidance on how to describe images. Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component. If error is detected immediately when exiting the form, ensure the error notification is keyboard accessible. If the default size of the headings is too big for the look you have in mind, use styles to change the size, rather than jumping down to a lower heading level. Examples of changes in context are: Going to a new page (or anything that would look to a user as if they had moved to a new page), Significantly re-arranging the content of a page. Avoid referring to visual indicators, like "the red button," or "the left-hand side of the page," or "the square box.". The destination or function of each link/button should be clearly explained in the link/button text or programmatically-determined link context. All non-text content that is presented to the user has a text alternative that serves the equivalent purpose. For all user interface components (including, but not limited to, form elements, links, and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies (Level A). There's much more to Section 508 compliance than alternative text. Use
for non-heading content. If you’re reading this article, I’m guessing you have at least some awareness of what alt text is for and how it’s used. Provide a clearly named control, such as a button, to initiate such changes. WCAG 2.0 Success Criterion 1.1.1 D3 Guaranteed Compliance: Section 508 ADA PDF Remediation Services. We are introducing two new improvements to make it easier for people with visual impairments to use Instagram. If you are developing a course under an old contract and you are not required to develop your course in the LCMS, follow the requirements … Provide alternative text or descriptions for non-decorative images, images within a link, form fields, and other interface elements. 1. The resources in this section were developed by the Accessible Electronic Documents Community of Practice (AED COP). Refer to WebAIM’s Using Headings for Content Structure. Best Practice: Do not have content that flashes. Requirements for 508 compliance. Provide a descriptive link to a text transcript or the audio track (for silent video/animation content) immediately after the audio-only or video-only content. Automatic changes should not be initiated when a component receives focus. Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality. Use the Tags panel to add alternate text for images in the PDF. Otherwise, the focus will be lost, effectively sending the focus back to the top of the Document Object Model (DOM). Navigation mechanisms can be any repeated information on pages and are not limited to links and menus. In addition, the web page as a whole continues to meet the conformance requirements under each of the following conditions: 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, and, When any technology that is not relied upon is not supported by a user agent. Best Practice: Do not use content that automatically moves, blinks, or scrolls. Alternative Text is Incorrect: The alt text of an image or the text alternative of a visual element does not convey the same information obtained visually. Note 6: Alternate versions should not be confused with supplemental content, which support the original page and enhance comprehension. Captions are provided for all live audio content in synchronized media. A mechanism is available to bypass blocks of content that are repeated on multiple web pages. Container to tabindex= '' -1 '' container to tabindex= '' 0 '' limit longer... 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