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Accessibility

Accessibility. Guidelines. Importance of Compliance. ?. Federal Law Web Projects Funded by Government Took Effect 2001 Section 508 of US Rehabilitation Act Mirrors Web Accessibility Initiative of W3C. W3C Guidelines. Guideline 1

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Accessibility

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  1. Accessibility Guidelines

  2. Importance of Compliance ? • Federal Law • Web Projects Funded by Government • Took Effect 2001 • Section 508 of US Rehabilitation Act • Mirrors Web Accessibility Initiative of W3C

  3. W3C Guidelines • Guideline 1 • Provide Equivalent Alternatives to Auditory & Visual Content • Provide Text Equivalent for Every Non-text Element • Images, Image Maps, Animations, Graphical Buttons, Sounds, Audio, Audio Tracks of Video, Video • Provide Redundant Text Links for Image Links • Provide Auditory Description for Visual Multimedia Content

  4. W3C Guidelines • Guideline 2 • Do Not Rely on Color Alone • All Information Conveyed with Color is Available without Color • Ensure Foreground & Background Provide Sufficient Contrast • Guideline 3 • Use Markup & Style Sheets Properly • Use Markup Rather than Images to Convey Information • Create Documents that Validate to Published Formal Grammars • Use Relative Rather than Absolute Units in Markup • Use Header Elements to Convey Document Structure

  5. W3C Guidelines • Guideline 4 • Clarify Natural Language Usage • Clearly Identify in Text • Captions • Specify Expansion of Abbreviation/Acronym When it First Occurs • Guideline 5 • Create Pages that Transform Gracefully • For Data Tables, Identify Row & Column Headers

  6. W3C Guidelines • Guideline 6 • Ensure Pages with New Technologies Transform Gracefully • Organize Documents So They May be Read Without Styles • Ensure Pages are Usable When Scripts, Applets, etc. are • Turned Off • Not Supported

  7. W3C Guidelines • Guideline 7 • Ensure User Control of Time-sensitive Content Changes • Avoid Causing the Screen to Flicker • Avoid Causing Content to Blink • Avoid Movement in Pages • Do Not Create Periodically Auto-refreshing Pages • Do Not Use Markup to Redirect Pages Automatically • Configure the Server to Perform Redirects

  8. W3C Guidelines • Guideline 8 • Ensure Direct Accessibility of Embedded User Interfaces • Embedded Objects with Their Own Interface Must be Accessible • Guideline 9 • Design for Device-independence • Provide Client-side Image Maps Vs. Server-side Image Maps • Create a Logical Tab Order Through Links & Form Controls • Provide Keyboard Shortcuts To • Important Links • Form Controls • Groups of Form Controls

  9. W3C Guidelines • Guideline 10 • Use Interim Solutions • Do Not Cause Pop-ups or Other Windows to Appear • Do Not Change the Current Window Without Informing User • Ensure Proper Position For Form Controls With Labels • Label Must Immediately Precede Its Control On The Same Line • Allowing More Than One Control/Label Per Line • Be in the Line Preceding the Control • With Only One Label & One Control Per Line • Provide a Linear Text Alternative for Tables that Use Parallel, Word-wrapped Columns

  10. W3C Guidelines • Guideline 11 • Use W3C Technologies & Guidelines • Use W3C Technologies When Available & Appropriate For Tasks • Use Latest Versions • Avoid Deprecated Features of W3C Technologies • Provide Info to Users According To Their Preferences • Language, Content Type • If You Cannot Create an Accessible Page • Provide a Link to an Alternative Page That • Uses W3C Technologies • Is Accessible • Has Equivalent Information or Functionality

  11. W3C Guidelines • Guideline 12 • Provide Context & Orientation Information • Divide Large Content Areas into More Manageable Groups • Use OPTGROUP to Group OPTION Elements Inside a SELECT • Group Form Controls with FIELDSET & LEGEND • Use Nested Lists where Appropriate • Use Headings to Structure Documents • Associate Labels Explicitly with Their Controls • Use LABEL & its FOR Attribute

  12. W3C Guidelines • Guideline 13 • Provide Clear Navigation Mechanisms • Clearly Identify the Target of Each Link • “Information About Version 4.3” Vs. “Click Here” • Use of TITLE Attribute • Use Navigation Mechanisms in a Consistent Manner • Group Related Links, Identify the Group

  13. W3C Guidelines • Guideline 14 • Ensure that Documents are Clear & Simple • Use Clearest & Simplest Language Appropriate For Site • Supplement Text With Graphic or Auditory Presentations • Only Where They Will Facilitate Comprehension of Page • Create a Style of Presentation that is Consistent Across Pages

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