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Web Accessibility MATC Compliance web accessibility At least 20% of users are affected by conformance of web accessibility initiatives. Many more are affected by poor design. common barriers • • • • • Issues with images Misuse of structure elements Audio/Video issues Table issue Sites with poor color contrast essential components • 508 web standards (legal standards) • W3C recommended standards – Web Content Accessibility Guidelines – Authoring Tools Accessibility Guidelines – User Agent Accessibility Guidelines – XML Accessibility Guidelines (in work) basic tips Images and Animation Use an “alt” attribute to describe the image or animation. basic tips Images Maps Use an “alt” attribute on an image element and a “title” attribute on a link element. basic tips Multimedia Caption the audio portion of your multimedia presentation. Sync the captioning with the video. Include an audio description of the visual information. Make sure the audio has text transcripts available. basic tips Hypertext Links Create links so that the words make sense when they are read out loud. basic tips Page Organization Use headings, bullet lists, and consistent structure – separate presentation with content using Cascading Style Sheets (CSS). basic tips Graphs and Charts Summarize these by using the “longdesc” attribute. Longdesc creates a link to another html document with descriptive text. basic tips Scripts, Applets and Plug-ins Provide alternative content in case features are inaccessible or unsupported. basic tips Frames Don’t use frames. Add meaningful titles to the frame elements to help with frame identification and navigation until you can convert. basic tips Tables Don’t use tables for layout purposes. Make headings and data flow. basic tips Color Make sure any information that uses color can be conveyed without the use of color. basic tips Style Sheets Don’t override client created style sheets. You may make your content unavailable to those users. basic tips Screen Flickers Don’t create animated gifs, java applets, or third-party plug-in applications that causes the screen to flicker at a high frequency. It could cause seizures. basic tips Identify Plug-In Links Use our third-party download page as a link reference. http://matcmadison.edu/matc/browserhelperapps/ basic tips Electronic Forms Set tab order. Keep labels with form elements. Don’t separate them by using table data cells. basic tips Write Clear and Concise Include accurate headings. Avoid complex structures. basic tips Check Your Work Use online validators such as those found on the W3C web site. Web Accessibility How do your pages comply?