Accessibility Testing is a subset of usability testing, and it is performed to ensure that the application being tested is usable by people with disabilities like hearing, color blindness, old age and other disadvantaged groups.
People with disabilities use assistive technology which helps them in operating a software product.
Speech Recognition Software – It will convert the spoken word to text , which serves as input to the computer.
Screen reader software – Used to read out the text that is displayed on the screen
Screen Magnification Software – Used to enlarge the monitor and make reading easy for vision-impaired users.