chapter one

1 Understanding web accessibility

 

This chapter covers

  • An introduction to web accessibility.
  • Why it matters for people and your business.
  • An overview of standards and guidelines underpinning worldwide legislation.
  • Establishing a technical pathway for accessibility.

Many people assume accessibility is only for users with disabilities. It’s not. Accessibility benefits everyone. Our abilities can fluctuate from moment to moment, depending on our environment, the devices we use, our level of attention, or our physical state. Good technology adapts to these shifts instead of forcing users to adapt to it.

The goal of digital accessibility is straightforward: to make technology usable by as many people as possible, regardless of their permanent, temporary, or situational limitations. In a world where communication, work, and entertainment all flow through digital tools, accessibility is no longer optional. It’s foundational.

Users are trying to get things done. The real problems arise when technology gets in their way, making access to information difficult, restricting input, or making simple tasks unnecessarily hard, and sometimes downright impossible. Accessibility removes those barriers – transparently. It helps people use technology to its full potential, often without realizing it.

1.1 What is web accessibility?

1.2 Where does accessibility fit in web projects?

1.3 Why does it matter?

1.4 Are there any laws that I need to be aware of?

1.5 WCAG – a bird’s eye view

1.5.1 Which version should I use?

1.5.2 WCAG 2.2 – how does it work?

1.5.3 What does WCAG conformance mean?

1.5.4 Looking ahead to WCAG 3

1.6 The journey towards building an accessible web app

1.7 Summary

1.8 References