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Web Content Accessibility Guidelines (WCAG) 2.1
August 12, 2020
Understanding WCAG 2.1 is an essential guide to understanding and using "Web Content Accessibility Guidelines 2.1" (WCAG2.1). The concepts and provisions may be new to some people. Understanding WCAG 2.1 provides a non-normative extended commentary on each guideline and each Success Criterion to help readers better understand the intent and how the guidelines and Success Criteria work together. It also provides examples of techniques or combinations of techniques that the Working Group has identified as being sufficient to meet each Success Criterion. Links are then provided to write-ups for each of the techniques.
Understanding the Four Principles of Accessibility The guidelines and Success Criteria are organized around the following four principles, which lay the foundation necessary for anyone to access and use Web content. Anyone who wants to use the Web must have content that is:
Perceivable - Information and user interface components must be presentable to users in ways they can perceive. This means that users must be able to perceive the information being presented (it can`t be invisible to all of their senses)
Operable - User interface components and navigation must be operable. This means that users must be able to operate the interface (the interface cannot require interaction that a user cannot perform)
Understandable - Information and the operation of user interface must be understandable. This means that 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)
Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. This means that 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.
Under each of the principles are guidelines and Success Criteria that help to address these principles for people with disabilities. There are many general usability guidelines that make content more usable by all people, including those with disabilities. However, in WCAG 2.0, we only include those guidelines that address problems particular to people with disabilities. This includes issues that block access or interfere with access to the Web more severely for people with disabilities.
Do you want to expand your revenue stream and do some good for the world in process?
People with disabilities (PWD), estimated at 1.3 billion, form a market the size of China. Together with their friends and family, acting on their emotional connection, PWD hold over $8 Trillion in annual disposable income. With the elderly population, a group with the biggest share of the national wealth, adding to this number, this is a market that can’t be ignored.
Put the exit dream aside. Every startup aspires to accumulate a large number of enterprise customers - the kind whose logo, when posted on the site, would display a kind of "industry standard” and identify them as a reliable market-leading company. About half of startup companies fail at this task - how can they succeed in their own right and sell their services directly to enterprise-level organizations?
THE MOST PROMISING ACCESSIBILITY SOLUTION - The value of a digital solution hinges on its ability to provide effortless accessibility functions to end consumers without compromising user experiences. Along the same lines, a website that fails to help differently-abled patrons attain equal experiences is bound to tarnish an organization’s hard-earned reputation. A lack of special web features prevents disabled people from navigating the vast online information realm and isolates them from the general society. Hence, a company’s digital architecture must be as hospitable and inclusive as its brick-and-mortar facilities.