How to Make Web Interface Accessible
You don’t have to build a brand new interface to make it accessible to anyone, you need to change the existing one.
The four main guiding principles of accessibility according to WCAG 2.0 are:
People should be able to perceive content in a way, which is accessible to them.
People should be able to interact with the interface and operate the content.
Content and interface should be understandable to anyone.
Interface and content should remain accessible as technologies advance.
Accessibility is one of the main aspects of usability, so the task for a designer is not to think of it as a simple requirements checklist, but as one of the facets of user experience.
It is important to realize, that every person faces limitations. When you cover the needs of a person with a disability, you cover the needs of elderly people and those, who experience specific needs permanently, temporarily or situationally.
For instance: to miss one arm is a permanent state, to break an arm and to wear a cast is a temporary state, to comfort a baby – situational.
Everyone will benefit from the design, that is easy to perceive and to work with. People with different abilities will see your design and will interact with it differently – a variety of human abilities generates various designs. The neat and clean design helps everyone to understand the functionality and information it contains.
There are web sites and apps that can simulate various types of color blindness, bad eyesight, and other disabilities.
The following requirements of accessibility will help you build a product that is easy to use for everyone.
Don’t expect your users to have no special needs. Even if your product is built for a small group of people, it is important to realize, that everyone faces limitations: one broke an arm and has to wear a cast, other works in a very loud environment, while someone doesn’t sleep well for weeks because of a newborn. Include these special needs in your users’ archetypes and users’ stories.
There are various special needs that have to be taken into consideration:
Blindness, myopia, hyperopia, color blindness.
Deafness, hearing loss, tinnitus.
Hand tremors, deformation, limn absence.
Problems of perception.
Dyslexia, dementia, sleep deprivation.
Elaborate scenario in which your product is being used by people with disabilities. Make sure participants use the product in every possible aspect and let them use their own devices and settings. Make this test regular.
The generic term for various range of devices and techniques used to simplify and ease the day-to-day life of people with disabilities.
Screen readers are software programs that allow blind or visually impaired users to read the text on computer screens or smartphones. Screen reader voices text, elements of the interface, as well as provides sound and vibrating response.