“Accessibility skills are increasingly in demand. With this course, you can build your accessibility skills and immediately apply what you learn in practice. Ms. Natalia Amelina, UNESCO Institute for Information Technologies in Education (IITE)”

Accessibility testing can be said as a part of usability testing. Because It allows us to collect information about how the application is used by people with certain different types of disabilities, and the main motto of accessibility testing is to make the benefits of the Internet accessible for individuals, businesses, and society. Success criteria totally depend on the following Four Basic Principles of Accessibility:

Perceivability — Information and user interface components must be presentable to users in ways they can perceive. Users must be able to take in the information being presented through at least one of their senses.

Operability — User interface components and navigation must be operable. Users must be able to interact with the interface, so the interface cannot require an action that a user cannot perform.

Understandability — Information and the operation of the user interface must be easy to comprehend. Users must be able to understand the information as well as the operation of the user interface.

Robustness — Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies. Users must be able to access the content as technologies advance. As technologies and user agents evolve, the content should remain accessible.