‘Error Prevention (All)’ requires a website to check, confirm and allow reversal of pages that require users to submit information.

Introduction

When a user is going through a process that results them submitting information, it’s more important than ever to try and prevent mistakes.

Although all users are susceptible to making mistakes, some disabilities and impairments can make

Error Prevention (All) (3.3.6 – Level AAA)Read more

Provide help to users.

Introduction

While many guidelines cover highlighting mistakes and remedying them, it’s useful to help users avoid making errors in the first place. Users with disabilities, such as impairments with reading, focus or understanding, are more likely to make mistakes than others.

Where a label or control isn’t as clear as it can be, adding

Help (3.3.5 – Level AAA)Read more

Elements do not change without a request.

Introduction

Some of your users will find automatic changes hard to deal with. Unexpected actions can interrupt their concentration and prevent them from reaching their goals. Help your users by keeping them in control and avoiding elements on your website that change automatically.

A change without a request is especially troublesome

Change on Request (3.2.5 – Level AAA)Read more

Define words where meaning is ambiguous without pronunciation. 

Introduction

You can help your users by paying attention to words where the meaning isn’t clear unless the word is pronounced (or spoken). Words like these can make it hard for your users to understand your content, especially if they use a screen reader (which could pronounce words incorrectly)

Pronunciation (3.1.6 – Level AAA)Read more

Define any abbreviations.

Introduction

Using abbreviations can cause confusion and prevent some of your users from understanding your website. Users with limited memory, cognitive impairments or a reliance on screen magnifier may struggle with shortened words and phrases. 

Avoid using abbreviations where you can and explain them when you need to use them.

Abbreviations (like Dr for Doctor) also

Abbreviations (3.1.4 – Level AAA)Read more

‘Section Headings’ requires you to organise content with headings.

Introduction

Adding section headings to all content will help your users understand your website. They are most helpful for users who have difficulty focusing or remembering where they are on a page, as well as users with a visual impairment who may navigate by skipping between headings.

You can

Section Headings (2.4.10 – Level AAA)Read more

‘Link Purpose (Link Only)’ requires that every link’s destination is clear from its text.

Introduction

It’s essential that you make your links clear and easy to understand.

That’s because users with assistive technology, like a screen reader, often hear all the links on a page to help them find where they want to go. Others may view your

Link Purpose (Link Only) (2.4.9 – Level AAA)Read more