Video Introduction to Web Accessibility and W3C Standards
Video Summary:
Four Principles
Understanding the Principles of Accessibility
Ensuring that everyone is able to perceive your content even if they access information in a non-typical way.
Users must be able to perceive the information being presented (it can't be invisible to all of their senses)
Text alternatives for non text content
Content can be presented in different ways which is separate from style
Alternative for audio and video content such as captions and/ or transcripts
Distinguishable content that can be seen and heard
Allowing users to operate your application using a variety of methods and forms of technology
Users must be able to operate the interface (the interface cannot require interaction that a user cannot perform)
Keyboard accessible functionality
Enough time to read or use content
Seizures - avoid designing content which could cause a seizure such as flashing and moving graphics
Navigable - ways to navigate and find content easily
All your content should be understandable, clear and concise and you should allow users to explore it at their own pace
Users must be able to understand the information as well as the operation of the user interface (the content or operation cannot be beyond their understanding)
Readable simplify text content
Predictable pages which operate in a consistent way
Input assistance helping users avoid and correct mistakes
Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
Users must be able to access the content as technologies advance (as technologies and user agents evolve, the content should remain accessible)
If any of these are not true, users with disabilities will not be able to use the Web or navigate through digital documents.
Compatible with other products including assistive technologies e.g. screen readers and magnifiers