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What are the four categories of accessibility?

Web Content Accessibility Guidelines (WCAG) should be easily understood and used. There are specific guidelines that are important to make the website or web application accessible. When it comes to the principles of accessibility, there are essentially four categories of accessibility that needs to be known for carrying out the accessibility process in a better manner. In this article, you will get to know the four categories of accessibility.  


What is accessibility? 

It is a specific process wherein websites or web applications are being made accessible to as many people as possible. Apart from focusing on disabled community in terms of providing them accessible means, accessibility also focuses on slow network connections, mobile devices etc. 

In many countries, governments have made it mandatory to make the websites or web applications accessible that are in line with that particular country’s accessibility standards and guidelines. For acquiring better services, companies can look out for qa outsourcing firms for availing better solutions.  


 

Some of the benefits of building accessible sites are as follows:      

  • Public image is improved as accessibility demonstrates good morals and ethics 

  • Semantic HTML, which in turn helps in making the site more findable. 


 

Following are the four categories of accessibility: 


1. Perceivable: User interface and information components should be presented to users in such a way that they can perceive. The information that is being depicted should be comprehended by the users. Users must be able to easily process the information. That information which is not presented in a process able format is not considered to be accessible.   


Perceivable guidelines:  

  • Text alternatives should be provided for any non-text content so that it can be changed into other forms people need such as simpler language, symbols, speech, braille or large print 

  • Alternatives should be provided for time-based media 

  • Content should be created in such a way that it can be presented in different ways without losing structure or information  

  • Content should be easily seen and heard by the users. 


 

2. Operable: Navigation and user interface components must be operable. Disabled people should be able to operate applications and websites with a variety of tools.  


Operable guidelines:  

  • All the functionalities must be made available from a keyboard 

  • Enough time should be provided by users to read and use content 

  • Proper ways should be provided so that users can find and navigate content  

  • Users should be able to easily operate functionalities through various inputs other than the keyboard. 


 

3. Understandable: The user interface related information should be understandable. The information should be easily understood by the users. Clear, concise language is used by understandable websites and specific functionality is offered that is easy to comprehend. A logical flow should be followed by forms and clear labels should be provided. 


Understandable guidelines: 

  • The text content must be made readable and understandable 

  • The web pages should be made in such a way that they operate and appear in predictable ways 

  • The users should be provided with the necessary support to avoid and correct mistakes. 


 

4. Robust: The content should be robust enough so that it can be reliably interpreted by various user agents, which includes assistive technologies. Conventions and development standards should be followed. Clean code is consumable across platforms and is generally more robust.  


Robust Guidelines: 

  • The compatibility should be maximized with current and future user agents, which includes assistive technologies. Accessibility standards are considered to be important, hence the team must give due importance to it.   

        

Conclusion: If you are looking forward to implementing accessibility testing for your specific project, then do get connected with a professionally acclaimed software testing services company that will provide you with strategic testing solutions that are in line with your project specific requirements. 

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