0401

Mobile App for Amateur Pilots

Specification: New mobile app for pilots club. Requires text, maps, lists, directions/navigation, and weather conditions.

Accessibility issues to address:

• visual impairment (text)
• visual impairment (night blindness)
• impaired cognitive function

Recommendations:

Typeface Selection

Font and font sizing on all text shall be such that it is easily readable even from a handheld mobile device.

Color Usage & Contrast Ratio

All pages should demonstrate a standard text to background contrast ratio of at least 70%, including text on maps/navigation charts and images.

Typesetting

The font height, width, and spacing of all text shall be if a type that maximizes readability for all users.

Font Scaling

Design shall be such that all text should be scalable, either by allowing devices to increase the size of text based on user/device accessibility settings, or through a scaling setting in the apps user settings.

Screen Reader Optimization

Layout and design must be optimized to allow for screen readers to accurately present the content as intended.  Where applicable, use semantic structure to identify information as intended. Images must always have appropriate alt text associated with them where applicable.

Optimized Navigation

The general layout of the app shall be such that users can quickly and easily navigate from a simple dashboard layout to the one-page content associated with that link. This streamlined navigation will make it easier for those with impaired cognitive function to keep relevant information in front of them or navigate back to forgotten content with just two clicks.

Images

All non-map images shall be accompanied by effective alt text which provides useful descriptions of non-text content and is written with clarity, economy, and content-appropriate structure in mind.

PDF’s & Imbedded Documents

Any PDF’s or other imbedded doc types shall follow these same accessibility guidelines and structure.