Screen Reader Testing Difficulty: Advanced Category: Validation Evaluating the accessibility of a web site in a screen reader can provide an interesting and accurate representation of true accessibility. Screen readers are very complex software and can be difficult to learn and use. Learning enough to simply listen to a web page and navigate through a […]
Read Full Post »
Contrast Difficulty: Beginner Category: Presentation Determining whether there is enough color contrast between text and background can be difficult. WCAG 2.0 has contrast guidelines at both level AA and level AAA and a complex formula for determining a contrast ratio. Large text (over 14 point bold) requires slightly less contrast than ‘normal’ text. There are […]
Read Full Post »
Alternative Versions Difficulty: Beginner Category: Principles Building one version of a site that is highly accessible is the best approach to accessibility. Providing alternative versions or directing users to accessible or mobile versions of a site can be interpreted a segregation and separation, particularly if the content and functionality is not similar or equivalent to […]
Read Full Post »
Animation Difficulty: Beginner Category: Presentation Animation or other moving elements on a web page can be distracting to all users. Even simple animation can render a web page completely inaccessible to users with certain cognitive disabilities or high levels of distractibility. Animation should generally be avoided. Brief animations (ones that completely stop in less than […]
Read Full Post »
Keyboard Accessibility Difficulty: Beginner Category: Structure Presentation Ensuring that your web page is fully accessible using only the keyboard is a vital component of web accessibility. All interactive elements, including links, buttons, form fields, media controls, etc. should be accessible using only the keyboard. Use the Tab key to navigate through page elements. Shift + […]
Read Full Post »
Conveying Information Using Color Alone Difficulty: Beginner Category: Presentation Avoid using color or other stylistic differences as the only means of conveying information or meaning. Blind users do not care about the color, font size, or styling of text, so long as the visual aspects of that text are not used to convey content. Screen […]
Read Full Post »
