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Animate Responsibly

Animate Responsibly. Shelly Brown Director of Web Services Southwest Baptist University. Minimum Requirements. Flash Player 6 or later Windows 98, 2000 and XP Vista - Flash Player 9.0.28 Microsoft IE 5 or later Screen Readers GW Micro Window Eyes 4.2 or later

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Animate Responsibly

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  1. Animate Responsibly Shelly BrownDirector of Web ServicesSouthwest Baptist University

  2. Minimum Requirements • Flash Player 6 or later • Windows 98, 2000 and XP • Vista - Flash Player 9.0.28 • Microsoft IE 5 or later • Screen Readers • GW Micro Window Eyes 4.2 or later • Freedom Scientific JAWS 4.5, 6.1 or later • IBM Home Page Reader 3.0.4 • Dolphin HAL 6.50 • KDS PC Talker (Japan)

  3. Controls • Labels – What is it? • Role – What’s it do? • State – Is it on or off? • Structure – What is the relation with the other controls?

  4. Best Practices • Provide text equivalents • Provide Context • Control Reading Order • Control Animation • Ensure Keyboard Access • Progressive Disclosure • Enable Component Accessibility • Provide Captions • Provide Control over Audio Playback • Use Color Wisely • Support Users with Low Vision

  5. Text Equivalents • Can be accomplished through the accessibility panel in Flash or with ActionScript • Placed in the name field • Small movies = single text equivalent + child objects inaccessible • Large movies = long description • Do not provide text equivalents when • Element contains no content, repetitive or are purely decorative • Auto-labeling

  6. Provide Context • Describe the movie • Site Info link • Expose state • Dynamic text field

  7. Control Reading Order • Keep the physical size of the movie small. • < 300 px wide and single column/row • Accessibility panel or ActionScript • Tab index values • ActionScript at root level in first frame • Reading order should reflect the structure of the screen. • Screen reader detection • Attach to first button in the movie

  8. Control Animation • Hide Child Objects • Accessibility Panel: deselect “Make Child Objects Accessible” • ActionScript: .forcesimple=true • Settle Motion • Avoid Blinking • Photo-sensitive epilepsy

  9. EnsureKeyboard Access • Avoid empty hit areas • Assign keyboard shortcuts for most essential controls • ActiveX Controls • Flash 6 or older will not let you tab out of a Flash movie to the HTML. Update to Flash 7 or newer.

  10. Progressive Disclosure • Limited number of options at the top • Multiple options at the bottom • Hide multiple controls under a single control

  11. Simple button Check box Radio Button Label Text Input Text Area Combo box * List box* Window Alert Data Grid * Enable Component Accessibility Enable the accessibility object by using the command enableAccesssibility() to first frame of movie. *Issues with Flash Player 7

  12. Provide Captions • Importing audio content that is already captioned • Placing text directly on the stage • Hi-Software – third-party tool that facilitates delivering captions • Streaming XML caption data • Hi-Caption SE or MAGpie from the National Center for Accessible Media.

  13. Provide Control over Audio Playback • Audio from a Flash movie may interfer with the ScreenReader. • Provide the user ability to start, pause and stop the audio. • Volume

  14. Use Color Wisely • Don’t use color as the sole means of providing information • Contrast

  15. Support Users with Low Vision • Options that allow users to modify text size of an application • Flash files (SWF) do not react to the user increasing the text size option in the browser • JavaScript fix, OSFlash.org

  16. Resources http://www.osflash.org/ http://www.actionscript.org/ http://www.aralbalkan.com/ http://niquimerret.com/ Flash Paper: Best Practices to Accessible Flash Design

  17. Good Examples http://www.pbs.org/wgbh/amex/zoot/eng_sfeature/mx/pop_zoot_mx.html http://science.education.nih.gov/supplements/nih3/hearing/activities/activities_toc.htm http://www.eduplace.com/tacklereading/puzzles.html http://www.eduplace.com/geonet/splash.html

  18. Questions??

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