| Dear [First Name]
Welcome to Session 3: The Perceivable PrincipleSession 2 RecapThe WCAG Scavenger Hunt is intended to give you an overview of the various pieces of WCAG, so when you need to find answers to accessibility questions, you know where to look for them. If web accessibility is part of a career move for you, it would be a good idea to spend some time going through guidelines, success criteria, and techniques. Not necessarily to memorize them or to recall specific guidelines or techniques and so on, but rather to be able to recognize, based on a particular accessibility challenge, where to look for solutions.Session 3This session we get into the details of WCAG, starting with the guidelines and success criteria for Principle 1: Web content must be perceivable. Sight and sound are the primary ways we perceive web content. There are many, however, that won't be able to use sight, sound, or both, when they navigate web content. Alternatives need to be provided whenever sight or sound are needed for comprehension. In most cases, this means providing text alternatives, such as alt text for images or captions for audio and video content. As you will learn, text is special when it comes to web accessibility.
This session's tasks:- Read through the pages that describe Guidelines 1.1 to 1.4. While doing so pay particular attention to the nature of guidelines or, rather, success criteria at the different levels. Note whether failing to address issues at each level creates absolute barriers, usability problems, or more of a nuisance. This will help you remember, and prioritize issues.
- Attempt the "Try This" mini activities scattered throughout the unit (in purple boxes) and continue to build your practical understanding of web accessibility.
- Complete Activity 3 - Creating Closed Captions. This activity will introduce you to the process of creating captions and transcripts for video. If this is your first time, you'll likely find it cumbersome in the beginning, but with just a little practice, you can generate captions for a couple minutes of video, in 10 to 15 minutes, or less.
Best wishes
Greg Gay (CPACC, WAS, CPWA)
IT Accessibility Specialist, Ryerson University
Lead Course Developer
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