WCAG 2.0 Guideline 1.1.1—"All non-text content that is presented to the user has a text alternative that s… It’s very, very rare that a product or company logo will be used in a way that doesn’t require alt text. Note: This is for the current implementation of ISO 32000-1:2008. WCAG 2.1 success criterion 1.4.3 delineates that text and background color should have a contrast ratio of at least 4.5:1. The guideline states . Alt text is a colloquial term for a text alternative provided using the alt attribute of an img element. Ph: 541-737-3556Accessibility Email, Jim Thatcher Text Alternatives for Images, Univ. Alt text is a description of an image that cannot be seen by a sighted user but is available to blind users via screen readers. If you don't want to add more content to your page, another preferred alternative would be to create another web page with just a description of the complex image and link to it near the image. If the image requires a lengthier description, it is best practice to describe the image in the content and provide a short alt text, although the attribute longdesc can be used as well. Provide a link to a text description adjacent to an image or other non-text content. Learn more in the Drupal section below. If you ever change the input format, you'll have to do this all over again. Determining appropriate alternative text for images will often be a matter of personal interpretation. WCAG 2.0 Success Criterion 1.1.1 D2. Add alt text to images inside Word and PDF documents. ALT text is accessed by screen reader users to provide them with a text equivalent of images. If you would like to get my full WCAG guide, subscribe to Accessible.org for free or you can search Kris’s WCAG Guide on Amazon and buy a copy. Generally, the areas of the standard above that relate to document accessibility are the sections on Non-Text Content related to images and their intended meaning. 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. Alternative text provides screen reader software users with access to all of the non-text information. Provides you with a Contrast Ratio Checker to make sure everything hits the minimum requirements. Email accessibility@yale.edu to provide feedback on these recommendations or for help with your Yale application. 1.1.1 Non-text Content; WCAG Sufficient Techniques. To add NULL alt text in Drupal, you have to edit the page in "PHP Code" input format. 1.1.1 Non-text Content (A) (2.0) All img tags must have alt attributes. If the content that the image conveys is presented within text in the surrounding context of the image, then an empty alt attribute may suffice. The first WCAG Guideline, Text Alternatives, is part of the Perceivable principle. (Level A). NULL alt text is just two quotation marks after the alt=. This is a simple solution, especially if the same image is used often. Alt text in templates and galleries. 1.1.1 Non-text Content: All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for the situations listed below. Continuing our article series on accessibility requirements, Alternative Text or Alt-Text is an area that is often misunderstood. For example, if the image below of former Vice Provost for Student Affairs Larry Roper was being used in something like an article about OSU or an event or program announcement, the alt text should just announce what the image is. alt="") it indicates to assistive technology that the image can be safely ignored. I am wondering whether an image of a person in a biography (e.g. The same inaccessible mouse-based title behavior exists, but at least the latest version of the HTML spec explicitly calls out the accessibility problems while warning against using it. Enforce that all elements that require alternative text have meaningful information to relay back to the end user. In the following example, the level of detail is dependent on the image and why it has been used. Then, right-click (Windows) or Ctrl-click (Mac OS) the text and choose Properties from the context menu and choose a language from the Language drop-down list. Writing copy is not their job! WCAG 2.0 Guideline 1.1.1 (level A) - All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, with some exceptions such as decorative text, etc. The longdesc only provides access to a link through a screen reader, so only someone using a screen reader would know more detail exists. This way, everyone would be able to get the full meaning of the chart. The purpose of this technique is to show how images can be marked so that they can be ignored by Assistive Technology. Descriptive alt text: All meaningful images on a website must have alt text. Basically, with 2.1, the Web… Because a screen reader reads out the title and type of a visual, you only need to fill in a description. Missing Alt Text Finder. Review W3C's Alt Decision Tree for guidance on how to describe images. WCAG Checker offered by marc.goodman.pcc.edu (1) 801 users. WCAG Technique H67 clearly states that:. It’s also worth noting that creating a new website and making it compliant is relatively easy, however, keeping a site compliant when numerous people are … Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols, or simpler language. Section 508 Standards: 1194.22 Web-based intranet and internet information and applications: Equivalent WCAG 2.0 Guidelines: Lectora Application (a) A text equivalent for every non-text element shall be provided (e.g., via “alt”, “longdesc”, or in element content). It is not a substitute for the WCAG 2 specification, and it may not cover all use cases. alt-text. Screen readers announce the presence of a link, so using words like "link" "visit" or "website" are not necessary. In this case, it is best to use what is called NULL alt text or empty alt text. Have all multilayered objects been flattened into one image and does that image use one alternative text description for the image? WCAG Support. Listen to this alt text in JAWS or view the Transcript. So, one of the first “best practices” is to have alt-text for images, charts, graphs and other visual content written by the original author, who best understands the meaning for including the visual content in the document. Alternative text (alt text) is one of the most important criteria of digital accessibility. Alternative Text For Images. This is why context matters the most, as you want to think about what information is the most important, the more pertinent, that you are trying to get across with an image. WCAG 2.1 - SC 1.1.1 Non-text content . Save your page and you will have images with null alt text. If a template lacks such a parameter, consider asking that it be added. Technically, this is a failure of WCAG because while the alt text is helpful to screen reader users, low vision users do not have the ability to adjust font type, font color and background color. One of the first steps to web and document accessibility, providing accurate and appropriate descriptions for an image, can be critical to the overall goal of ensuring that content is accessible. And audio descriptions may also be called for. The strict definition of "Pure Decoration" in WCAG does not include the concepts of adjacent or redundant text, nor does the the Understanding document. ... All img tags must have alt attributes. All content authoring tools used at Rice include ways of creating alt text descriptions, including Microsoft Word and PowerPoint, Google Docs and Slides, Drupal, WordPress, Canvas, KB, and more. We use cookies to ensure that we give you the best experience on our website. The Alt Text textbox has a limit of 250 characters. When defining the alt attribute (alt text) on an image, context matters the most. The traditional way to provide this extra context has been through an attribute called a long description. WCAG 2.0 requirements for alternative text that includes techniques for meeting this Success Criteria. The alt-text should be reasonably descriptive but not too long. Alternative Text (Alt-Text) Accessibility Guidelines One of the first steps to web and document accessibility, providing accurate and appropriate descriptions for an image, can be critical to the overall goal of ensuring that content is accessible. Essentially, if all the words in an image are not in the alternative text, the image probably creates a barrier that is a violation of WCAG 2.0 AA rules. There is no right or wrong answer regarding appropriate alt-text if it serves the purpose of the author and conveys the same information to the screen reader user as it does for sighted viewers. For example, the OSU tag image below is used at the top of every OSU website as a link back to the homepage for the university. During the 2008-2009 year there were 20320 students, of which, 5675 were new students. Have all multilayered objects been flattened into one image and does that image use one alternative text description for the image? When the image is complex, including things such as charts, data, statistics, etc. Storyline 360 supports WCAG 2.1 Level AA, including screen readers, keyboard navigation, visible focus indicators, and more. The first WCAG Guideline, Text Alternatives, is part of the Perceivable principle. ALT text refers to invisible description of images which are read aloud to blind users on a screen reader. If you continue to use this site we will assume that you are happy with it. As another example, the image below shows alt text being used to describe an image of campus. Caption: Painting "Washington and Lafayette at Valley Forge" by John Ward Dunsmore from 1907. The longdesc linked file or the page content should then contain a description similar to the following: In Drupal, alt text is added through the IMAGE DESCRIPTION field when inserting an image. Alt text is always required, how it is written can vary depending on the type of image. 330 Snell Hall Corvallis, Oregon 97331 Below is my quick checklist on how to meet WCAG 2.0 AA for 2020. Add alt text to multimedia assets e.g audio tracks or videos, to tell a screen reader user that they are embedded in your eLearning resource before they start to play. Check color contrast against Web Contrast Accessibility Guidelines (WCAG) level AA. User interface components and navigation must be operable. In this case, the alt text is "Oregon State University." Most screen readers work in the whole computing environment, but for our purposes how they interact with websites is the most important in this section. Do all decorative images have “ “ in the alt text field? The Alt Text textbox has a limit of 250 characters. I’ve written this in plain English for beginners. “What is meaningful alternative text for an image?” WCAG 1.1.1). Link to this separate description by making the image a link, or by placing a text link adjacent to the image. Search engines will use the alt-text description to determine the content of the image. When it comes to the web accessibility principles, the inclusion of an alt attribute with an image in HTML code needs to be at the forefront of the developers’s mind. WCAG 2.1. Provide a concise alternative to the image in its ALT attribute. Report shows the URL being tested, number of files tested, number of files failing at least one checkpoint, number of files with at least one warning and number of files to be verified by the user.”. HTML: Former Vice Provost for Student Affairs Larry Roper. Determine alt text by asking, "What text would I put here instead of this picture?" WCAG Success Criteria. If no alt attribute is present, the screen reader will read the file name for the image instead, which can be a major distraction to those using screen reading technology. Alt text, or alternative text, is primarily used by people who use screen readersto access websites, apps, and other software. David MacDonald is president of CanAdapt and an 18 year veteran with the WCAG Working group, the longest standing Invited Expert. Accessibility How-To Articles. If short alt text is sufficient to describe an image, provide the short text via the image's alt attribute. When using the img element, specify a short text alternative with the alt attribute. Validation tools are useful because they’re instantaneous. The value of this attribute is referred to as "alt text". Any information about the image, such as copyright information, image source or extra information should be placed in the caption text below the image, not in the ALT text. An assistive technology is a hardware and/or software that acts as a user agent, or along with a mainstream user agent, to provide functionality to meet the requirements of users with disabilities that go beyond those offered by mainstream user agents. 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. For many images, a few words are appropriate, in other cases a few sentences many be necessary. This is one reason why adding descriptions in the page content would always be preferred. Step 8: PDF Accessibility: Testing and Verification, 1600 Wilson Blvd., Suite 1010, Arlington, VA 22209 Tel: +1 202-902-0988 Fax: +1 202-559-7226, 320 March Road, Suite 602 Kanata, Ontario, Canada K2K 2E3 Tel: +1 613-270-9582 Fax: +1 613-270-0574, 1502 / 15 Caravel Lane, Docklands, Victoria Australia 3008 Tel: +614-0232-4978. WCAG 2.0 Success Criterion 1.1.1 D4 Set the language for a block of text by selecting the text element or container element in the Content panel. The chart below shows trends from 2007 to 2011 comparing the total number of OSU enrolled students to the number of new students each academic year. Does the image provide additional information, or expand upon the text in the document? For this article, we will focus on providing proper alt-text for documents, so only some of the WCAG 2.0 Guidelines below are applicable. See example below for what a screen reader experiences when no ALT Text is used. ), HTML: , Since a screen reader skips over NULL alt text, there is no audio example. Provides you with a Contrast Ratio Checker to make sure everything hits the minimum requirements. Logos. This is a critical component of accessibility for screen reader users in order for them to understand the content's purpose on the page. Providing alternative formats and text descriptions is helpful for comprehension. Alt text is a must. But authoring quality alt-text is a skill that needs to be developed. In most cases, describing what clicking will do is probably adequate, but again, context is most important and it will be a case by case basis. If no ALT text is provided, then a screen reader would only be able to say "IMAGE" or perhaps provide a file name. Section 1: Alternatives. He is the only Canadian Invited Expert listed on the WCAG 2.0 standard. If the image does not provide any additional information, but is merely used for decoration, then, in a PDF, it should be untagged and placed in an Artifact Container. Content owners are the best resource for text descriptions since they know what information they want the image to convey. Use what is meaningful alternative text should give the intent, purpose, and meaning of the gallery! 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