Web Accessibility

Overview

Web Accessibility ensures that the implementation of universal design principles complies with Section 508 and Web Content Accessibility Guidelines (WCAG) so that everyone, including disabled users, can interact with webpages. This is a requirement that prevents users from disregarding information because of their ability to see or interact with pages.

Why does Accessibility Matter?

Accessibility guarantees that resources are available for everyone. It enables the ability to provide the same information to a user that has a disability as to an individual that prefers to use the features for convenience. Accessible web content helps assistive technology users easily navigate and understand information to the same extent as an individual who does not use assistive technology. For example - screen readers, the most commonly used assistive technology, read out loud the content of the web page for those who are visually impaired or cannot focus (dyslexia).

Instructions

Understanding Accessibility

Accessibility is not about disability; it’s actually about ability. It’s about making it easy for everyone.
  • Acquire the same information
  • Engage in the same interactions
  • Enjoy the same services

In an equally effective and equally integrated manner, with substantially equivalent ease of use.

Principles for Information and Communication Technology (ICT)

  1. Perceivable: so that individuals with visual impairments can understand the information being conveyed
  2. Operable: navigate to information in multiple methods (not only the mouse)
  3. Understandable: understandable enough so that all different learning styles can engage
  4. Robust: IT products should be compatible with a user’s desired technologies or system preferences
Accessibility ensures everyone can perceive, understand, engage, navigate, and interact with technology regardless of device, software, or product without barriers.

Universal Design Principles

The design is useful and marketable to people with diverse abilities. For example, a website that is designed to be accessible to everyone, including people who are blind and use screen reader technology, employs this principle.
The design accommodates a wide range of individual preferences and abilities. An example is a museum that allows visitors to choose to read or listen to the description of the contents of a display case.
Use of the design is easy to understand, regardless of the user's experience, knowledge, language skills, or current
concentration level. Science lab equipment with clear and intuitive control buttons is an example of an application of this principle.
The design communicates necessary information effectively to the user, regardless of ambient conditions or the
user's sensory abilities. An example of this principle is captioned television programming projected in a noisy sports bar.
The design minimizes hazards and the adverse consequences of accidental or unintended actions. An example of a
product applying this principle is software applications that provide guidance when the user makes an inappropriate selection.
The design can be used efficiently, comfortably, and with a minimum of fatigue. Doors that open automatically for people with a wide variety of physical characteristics demonstrate the application of this principle.
Appropriate size and space is provided for approach, reach, manipulation, and use regardless of the user's body size, posture, or mobility. A flexible work area designed for use by employees who are left- or right-handed and have a variety of other physical characteristics and abilities is an example of applying this principle.

Best Practices for Accessibility

How to Evaluate Accessibility Based on Four Principles

  1. Font: Is the font styling easy to read?
  2. Color: Is the font color easy to read?
  3. Tab: Can a user "tab" through the functions?
  4. Enlarge: Can a user make the font bigger? (ctrl +)

ATI Resources

Resources

Other Videos and Resources