Bobby's analysis of accessibility is based on the World Wide Web Consortium's (W3C) Web Content Accessibility Guidelines. For example, to become Bobby approved, a Web site must:
- provide text equivalents for all non-text elements (i.e., images, animations, audio, video)
- provide summaries of graphs and charts
- ensure that all information conveyed with color is also available without color
- clearly identify changes in the natural language of a document's text and any text equivalents
(e.g., captions) of non-text content- organize content logically and clearly
- provide alternative content for features (e.g., applets or plug-ins) that may not be supported
Bobby also analyzes web pages for compatibility with various browsers. Analysis is based on documentation from browser vendors when available. Bobby automatically checks sites for compatibility with HTML 4.0. For accessibility and tag compatibility with browser specifications other than HTML 4.0, use the Advanced Options. Once your web site receives a Bobby Approved rating, you are entitled to use a Bobby Approved icon on your site.
The Bobby is the symbol for Web site Accessability from Cast. With his blue uniform and the univeral symbol for disabilities on his hat. When ever you see the bobby you know that Web Site Compatabiliy and Compliance is there.
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