About this report

The Bobby report presents an accessibility evaluation grouped by the three priority levels defined by the Web Access Initiative (WAI), as well as browser compatibility and download statistics. As an automated evaluation tool, Bobby is able to detect many accessibility problems and to highlight other possible problems that must be checked. A "Bobby" hat in the original page (if displayed) indicates that Bobby was able to detect a Priority 1 problem with accessibility. A question mark indicates a Priority 1 item that needs to be checked by the user. Follow the links provided in the report to get details about any problem reported, including how to repair it, if needed. For more information on the report, please access our online documentation.

To be Bobby Approved, a page must pass all of the Priority 1 accessibility checkpoints established by the WAI.




Example of an Image With ALT Text

This is an example of how to provide information on the images you use in your web pages to non-visual users...starring one of my favorite cartoon characters

Priority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededStainboy

Most browsers are set, by default, to display an image's ALT text in a small box called a "tool tip" when your mouse cursor rests over it, or if you turn off automatic loading of graphics in your browser. ( NOTE: Turning off your browser's automatic loading of graphics is an excellent way to get an idea of what a non-visual user or user agent will display when accessing your page.) If you position your mouse cursor on the above title, you should see the ALT text "Stainboy" displayed in a tool tip box.

If you try the same technique with the graphic below on the left, please notice that no tool tip is displayed. This is because there is no ALT text supplied for this image.

Now, place your mouse over the graphic on the right. The tool tip will be displayed ... and I encourage you to follow the d-link for more information on our little friend!

Priority 1 Accessibility - Manual Check Needed
Priority 1 Accessibility - Manual Check NeededPriority 1 Accessibility ErrorsPriority 1 Accessibility - Manual Check Needed Priority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededStainboy - Use the d-link for more info - and don't make a mess!

[D]

Display the text of the code used to produce Stainboy's ALT text

See a Bobby report on this page


Return to the Technology page

Priority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check NeededPriority 1 Accessibility - Manual Check Needed




Priority 1 Accessibility

This page does not meet the requirements for Bobby Approved status. Below is a list of 1 Priority 1 accessibility errors found:

  1. Provide alternative text for all images. (1 instance)
    Line 49

User Checks

User checks are triggered by something specific on the page; however, you need to determine whether they apply. Bobby Approval requires that none of them apply to your page. Please review these 4 item(s):

  1. If an image conveys important information beyond what is its alternative text, provide an extended description. (3 instances)
    Line 39, Line 49, Line 50
  2. If a table has two or more rows or columns that serve as headers, use structural markup to identify their hierarchy and relationship. (1 instance)
    Line 47
  3. Be sure pages are readable and usable if style sheets are ignored.

  4. If you use color to convey information, make sure the information is also represented another way.

The following 5 item(s) are not triggered by any specific feature on your page, but are still important for accessibility and are required for Bobby Approved status.

  1. If you can't make a page accessible, construct an alternate accessible version.

  2. Use the simplest and most straightforward language that is possible.

  3. Avoid ASCII art.

  4. Identify any changes in the document's language.

  5. Ensure that descriptions of dynamic content are updated with changes in content.

Not Bobby ApprovedThis page does not yet meet the requirements for Bobby Approved status.


Priority 2 Accessibility

For a higher level of accessibility you may also want to examine Priority 2 items. This web page does not contain any Priority 2 accessibility errors that Bobby can detect. However, certain items require human judgment; these are listed below.

User Checks

6 Priority 2 issue(s) that Bobby has identified are presented below:

  1. Check that the foreground and background colors contrast sufficiently with each other.

  2. Mark up quotations with the Q and BLOCKQUOTE elements.

  3. Use header elements in the proper sequence and not for bold text.

  4. Avoid using movement in images where possible. (1 instance)
    Line 39
  5. Avoid using tables to format text documents in columns unless the table can be linearized. (1 instance)
    Line 47
  6. Style sheets should be used to control layout and presentation wherever possible.

The following 8 item(s) are not triggered by any specific feature on your page, but are still important for accessibility.

  1. Use a clear, consistent navigation structure.

  2. Where it's possible to mark up content (for example mathematical equations) instead of using images, use a markup language (such as MathML).

  3. Make sure your document validates to formal published grammars.

  4. Use metadata to add computer-understandable information about the page.

  5. Group related elements when possible.

  6. Ensure that dynamic content is accessible or provide an alternate presentation or page.

  7. Offer a site map or table of contents, and provide a description of the general layout of the site, the access features used, and how to use them.

  8. Use the latest technology specification available whenever possible.




Browser Compatibility Errors

The following section contains a list of 1 browser compatibility errors. Browser compatibility errors help to determine when HTML tags and their attributes are not compatible with certain web browsers or HTML specifications. Browser compatibility errors do not affect the accessibility rating of a page.
  1. Required attribute ALT is missing from tag IMG for browser(s): HTML4.0 (1 instance)
    Line 49

Download Time

The following three-column table gives download time statistics for the images, applets, and objects on this page. The first column contains the URL of each item, the second column the item size in kilobytes, and the third column the approximate download time for each item when using a 28,800 baud modem. At the end of the report, an arbitrary delay of 0.5 seconds is added for each file to account for slow-downs caused by HTTP connection times.

URL
Size
Time (secs)
http://www.albany.net/~oradnio/technology/accessexamples/imagealtsample.html 3.50 K 0.97
http://www.albany.net/~oradnio/technology/accessexamples/stainboytitle.gif 19.77 K 5.49
http://www.albany.net/~oradnio/technology/accessexamples/autograph1.jpg 6.36 K 1.77
Total
29.62 K
8.23
HTTP Request Delays
--
1.50
Total + Delays
--
9.73

© 2000 CAST. Send feedback to bobby@cast.org. Additional information available at cast.org/bobby.