Accessibility

The most important information is amassed before the actual design and implementation begins. Base the entire product concept on verified user needs and requirements. When asked, users want many things, but often these things are not what they need to reach their goals. When making design and implementation decisions, remember that the point of the application is to allow users to reach their goals efficiently and smoothly.

When designing for accessibility, take these situations into account:

Visual impairment
- Avoid color combinations that are difficult for the color blind, such as red and green or blue and yellow. Test also in black and white.
- Use clear visual elements with high contrast (dark symbols on light surface) that are sufficiently big.
- Do not rely on visual clues only. Mobile devices also have vibration and sound.
- Design text content so that a reader program will read them out correctly.
- Allow the user to change text and UI elements to a preferred size.

Hearing impairment
- Do not rely on sound alone. Use vibration and visual clues as well.
- Give users control over sound volume.

Motor disabilities
- Offer alternative methods of control in addition to the keypad. The elderly and people with motor disabilities may find the keys on a mobile device difficult or impossible to use. Offer options like voice commands, touchscreen gestures, and even moving the device itself.

Cognitive and other impairments
- Use clear and simple language that is familiar to the user. Avoid jargon.
- Do not rely on text alone getting the message across; the product may be used by someone who can’t read.

*U.S. Census Bureau

Rate This