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When creating an OER it is important to evaluate your site's accessibility. Here are some self-evaluation and assessment tools you can use to evaluate your sites.
WAVE Tool [Updated 2020]
The WAVE tool was created in 2001 and revamped in 2019 by the WebAIM, a non-profit organization based at the Center for Persons with Disabilities at Utah State University.
The WAVE browser plug-in is easy to use and allows you to see issues on your pages, such as contrast errors or structural issues, all at once automatically. The tool also provides information and links to further information regarding WCAG so it helps you learn about accessibility as you use it. WAVE for Firefox, WAVE for Chrome.
aXe: the Accessibility Engine
Created by the Deque Systems, the aXe browser extension will run a quick in-browser test. The extension returns detailed information on accessibility violations and how to fix them with a link to more in-depth information. You use the aXe extension in conjunction with opening and viewing “Inspect Element” or “Inspect” in your browser. They have axe for Chrome, axe for Firefox 54+, axe-core on GitHub, and axe-core on npm.
] (2016, Dec. 1) Easy Accessibility Testing with aXe [Video File]. Retrieved from https://youtu.be/FW1giWW5M9I
An open source Web accessibility evaluation tool. It can be used to review the accessibility of Web pages based on a variety international accessibility guidelines.
The AChecker provides the ability to generate downloadable reports: You can export the reports in PDF, CSV, HTML, or EARL files. The reports list accessibility issues in the following categories:
- Known problems: These are problems that have been identified with certainty as accessibility barriers. You must modify your page to fix these problems;
- Likely problems: These are problems that have been identified as probable barriers, but require a human to make a decision. You will likely need to modify your page to fix these problems;
- Potential problems: These are problems that AChecker cannot identify, that require a human decision. You may have to modify your page for these problems, but in many cases, you will just need to confirm that the problem described is not present.
(Note: You DO NOT need to create an account to use AChecker, but you can save reviews and customize standards testing)
Attribution: [Greg Gay ] Using AChecker to Test Web Accessibility [Video File] Retrieved from https://youtu.be/jtNyF7KuOk8
The Tota11y: Accessibility visualization toolkit will help you visualize how your site performs with assistive technologies by allowing you to look at issues such as Headings, Color contrast, Link text, labels or Image alt tags. Tota11y is available as a browser plug-in and bookmarklet. Created by Khan Academy. tota11y for Firefox, tota11y for Chrome
] (2015, Sept. 12) Accessibility Tools - Tota11y [Video File] Retrieved from https://youtu.be/DTxxA_Y1gak
The extension by Jorge Rumoroso generates a document map or index of any web document structured with headings (you can access directly to the content by clicking on any of its items), and now, it shows the HTML 5 outline. The extension:
- Shows the structure of the main document headers.
- Indicates the level of each of the headers.
- Alert the cases where no headers in the document and those breaks incorrect header, keeping alert header to find a suitable level.
- Displays all the headers present in the document, including hidden by CSS techniques or those lacking content.
headingsMap for Firefox, headingsMap for Chrome.
Landmarks Navigation via Keyboard
The Landmark browser add-on allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu. Landmark regions broadly signpost the areas of a page (e.g. navigation, search, main content and so on). Landmark for Firefox, Landmark for Chrome.
These 16 bookmarklets were created by Paul Adam, a Web & Mobile Accessibility Consultant in Austin, TX. I find the “Image”, “Force Focus” and “Headings” really useful.
These 5 bookmarklets were originally created by Pixo and Disability Resources and Educational Services (DRES) at the University of Illinois at Urbana-Champaign. They are based on WCAG 2.0, ARIA 1.0, and HTML5 requirements. and designed for use on modern desktop browsers (Chrome, Firefox, Safari, Opera, and IE 9 or above). Click on the bookmarklet images below to be taken to the instillation page. Once on the page, to install a bookmarklet, the most common way is to drag and drop a bookmarklet link into your browser’s bookmarks or favorites bar.
- Landmarks: Highlights all ARIA landmarks, including HTML5 tags that are interpreted as landmarks.
- Headings: Highlights all H1 through H6 elements on a page.
- Lists: Highlights every ordered list, unordered list, and definition list on a given page, along with how many list items exist for each list.
- Forms: Highlights form-related elements and provides info on their associated labeling techniques, grouping labels and ARIA roles.
- Images: Highlights the types of images on a page, along with their alt text.
A11Y – Color blindness empathy test
Empathy test for color blindness and visual impairment. This add-on emulates 8 types of color blindness, plus grayscale to check the contrast of your website. A11y for Firefox, A11y for Chrome
WCAG Contrast Checker
WCAG Contrast Checker
This plug-in by Jorge Rumoroso checks the compliance of contrast levels of foreground and background color combinations based on the requirements of WCAG 2.1. WCAG Contrast Checker is a Firefox browser plug-in.
Color Contrast Analyzer
Color Contrast Analyzer
A Chrome browser plug-in. This extension allows you to analyze text color contrast problems on a webpage according to the WCAG 2 text color contrast requirements. It evaluates the page as it appears in the browser, so it is able to handle text over gradients and advanced CSS attributes. You can choose to analyze a portion of a web page, the entire visible contents of a tab, or an entire web page.