Question

1. what is accessibility and assistive technology in web design? give one example for how assistive technology might support accessibility.

2. file formats like JPEG, GIF and PNG are supported by web browsers. which file format would you suggest be used to store the below given images? Expalain your reason for suggestion that particular file format

i) A picture of brightly coloured pigeon

ii) A railway network map showing routes between two towns

Answer 1

Accessibility is making your website in the way they can be used by as many people as possible which includes both the people with disability as well as the other groups such as people with a low internet connection and etc.

It can also be thought as giving equal opportunity to everyone to use web despite their problems.

Assistive technologies are tools used to access digital information by people with disability. It is used to maintain or enhance the functional capabilities of disabled people. It can be any device, software or equipment.

There are 4 main areas where there is a need for accessibility of web users:

• Visual Impairments
• Auditory Impairments(Low hearing or deafness)
• Mobility Impairments(Loss of Lack of muscle Control)
• Cognitive Learning(Difficulties with memory)

A user with any of these disabilities needs access to assistive web design. This can be done by removing the barriers to people with disability faces.

Examples of how assistive technology supports accessibility are

Screen readers-which outputs the text displayed on the screen to a user in the form of speech who is blind or visually impaired;

Screen magnifiers- which enlarges texts and graphics on the screen

Voice recognition - which converts users speech into digital speech

2. (a) JPEG since it is a good option for images with colours

(b) PNG since thisformat is perfect for screenshots and other types of imagery where there’s not a lot of color data.