This document provides guidelines for developing accessible web and mobile content. It states that 1 in 4 users have a vision difficulty, 1 in 4 have a dexterity difficulty, 1 in 5 have a hearing difficulty, and 16% have a cognitive difficulty or impairment. The key recommendations are to use descriptive tags for images and videos, provide text alternatives and captions, limit Flash content, and allow users to choose embedded or external viewing options. A "Get accessibility help" link should also be included to provide additional support.

1. Web accessibility best practices For use in developing the group project for EXT 503

2. Facts about users 1 in 4 has a vision difficulty 1 in 4 has a dexterity difficulty 1 in 5 has a hearing difficulty 16% of users have a cognitive difficulty or impairment 3% have a speech difficulty or impairment Microsoft Study, 2004

3. Important Web and mobile have generally same accessibility barriers A good solve is usually a “Get accessibility help” link If we need more answers: http://www.w3.org/WAI/mobile/

4. General standards/practices Convert office documents to HTML versions Use tags for html and PDFs - any images Limit use of Flash where HTML will do For video, let user choose external or embedded view (option of either) Open content in same - not new - window Simpler, with fewer images & more text = better Provide captions/text for audio, video Provide summaries of content that may be difficult to view or hear

5. Visual impairments: images People with visual impairments and blindness cannot use images and therefore need text descriptions to understand the content Same holds true for video

6. Hearing impairments: audio People with hearing impairments cannot hear speech clearly or at all and need a text transcript of audio or synchronized captions for the audio portion of a video

7. Solving these issues Let the users do it! Alt tags - folksonomy EG: “ Carolyn Gilbert running in the valley ” Captions to describe photos, videos EG: “ This is such an awesome video of me and Carolyn Gilbert running through the river valley. The part where she trips over the crack in the sidewalk - sorry, Carolyn, but it ’ s so funny! ”