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6 Web-Based Information and Applications Accessibility Guidelines

6   Web-Based Information and Applications Accessibility Guidelines

6-1   Overview

6-1.1   Contents

6-1.2   Summary

6-1.2.1   Technology

6-1.2.2   Audience

6-1.3   Structure and Use

6-1.4   General Requirements

6-1.5   Testing for Compliance

6-2   Non-Text Elements

6-2.1   Rationale

6-2.2   Techniques

6-2.2.1   Provide Alternate Descriptive Text for Non-Text Elements

6-2.2.2   Provide Alternate Text for Images

6-2.2.3   Provide Long Descriptions in Addition to Alternate Text

6-2.2.4   Use Descriptive Links

6-2.2.5   Appropriate Use of Blank Alternates

6-2.3   Testing

6-2.4   References

6-3   Multimedia

6-3.1   Rationale

6-3.2   Techniques

6-3.3   Testing

6-3.4   References

6-4   Color

6-4.1   Rationale

6-4.2   Techniques

6-4.3   Testing

6-4.4   References

6-5   Style Sheets

6-5.1   Rationale

6-5.2   Techniques

6-5.2.1   Design So That Alternate Style Sheets Can Be Applied

6-5.3   Testing

6-5.4   References

6-6   Image Maps

6-6.1   Rationale

6-6.2   Techniques

6-6.3   Testing

6-6.4   References

6-7   Tables

6-7.1   Rationale

6-7.2   Techniques

6-7.2.1   Simple Tables

6-7.2.2   Complex Tables

6-7.3   Testing

6-7.4   References

6-8   Frames

6-8.1   Rationale

6-8.2   Techniques

6-8.2.1   Avoid Using Frames

6-8.2.2   Provide Frame Titles

6-8.3   Testing

6-8.4   References

6-9   Screen Flicker

6-9.1   Rationale

6-9.2   Techniques

6-9.3   Testing

6-9.4   References

6-10   Equivalent Text Content

6-10.1   Rationale

6-10.2   Techniques

6-10.2.1   Use Standard Accessible Formats

6-10.2.2   Descriptive Hyperlinks

6-10.3   Testing

6-11   Scripting Languages

6-11.1   Rationale

6-11.2   Techniques

6-11.2.1   Scripts

6-11.2.2   Java Accessibility

6-11.3   Testing

6-11.4   References

6-12   Plug-ins and Applets

6-12.1   Rationale

6-12.2   Techniques

6-12.3   Testing

6-12.4   References

6-13   Forms

6-13.1   Rationale

6-13.2   Techniques

6-13.3   Testing

6-13.4   References

6-14   Portable Document Format (PDF) Files

6-14.1   Rationale

6-14.2   Techniques

6-14.3   Testing

6-14.4   References

6-15   Repetitive Navigation

6-15.1   Rationale

6-15.2   Techniques

6-15.3   Testing

6-16   Timed Responses

6-16.1   Rationale

6-16.2   Techniques

6-16.2.1   Inactivity: When Applications Can Allow Users More Time

6-16.2.2   Fixed Time Limit: When Applications Do Not Allow More Time

6-16.2.3   Notifying Users That A Change Has Occurred

6-16.2.4   Automatic Updating of Web content

6-16.3   Testing