YUI Graded Browser Support
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Yahoo! Graded Browser Support (GBS) is a system that Yahoo! uses to determine the level of support provided for different web browsers. GBS assigns grades of A, C, or X based on factors like browser identification, popularity, capabilities, and modernness. C-grade provides basic HTML support, while A-grade provides full support including CSS and JavaScript. KU follows GBS guidelines by targeting A-grade browsers and planning to drop support for IE6. Browser statistics for KU's website show most visitors use newer browsers like IE8, with a small amount still on older browsers like IE6.
YUI Graded Browser Support
- 1. Yahoo! Graded Browser Support The game of global Internet domination John Kary | johnkary@ku.edu Web Development & Interface Design University of Kansas, Information Technology November 2010 KU Web Developers Meeting
- 2. ‣ Browser Wars ‣ Yahoo! GBS ‣ GBS at KU
- 3. Early Browser Wars Image: http://en.wikipedia.org/wiki/Netscape_Navigator
- 4. Early Browser Wars Image: http://en.wikipedia.org/wiki/Netscape_Navigator
- 5. Early Browser Wars Image: http://en.wikipedia.org/wiki/History_of_Internet_Explorer
- 6. Early Browser Wars Image: http://www.teamlalala.com/blog/2009/12/23/best-viewed-in-netscape-3-0/
- 7. Current Browser Wars Image: http://www.toy-tma.com/learning-toys/board-games/risk-board-game-rule/
- 8. Current Browser Wars Image: http://commons.wikimedia.org/wiki/File:Risk_board.svg Image: http://www.ashersarlin.com/archives/2004/09/honestly_who_co.php
- 9. Current Browser Wars ? XP
- 10. Yahoo! Graded Browser Support (or GBS)
- 11. What is it? Survey Select Advocate
- 12. GBS – November 2010 Source: http://developer.yahoo.com/yui/articles/gbs/
- 13. Why? Supporting GBS means ensuring core content and functionality is... 1. Accessible without images, CSS or JS 2. Accessible using only a Keyboard 3. Accessible by older browsers, but hides all advanced functionality prompts are You see the pattern here...
- 15. “” Why? Availability and accessibility of content should be our key priority. What Does “Support” Mean? http://developer.yahoo.com/yui/articles/gbs/ Expecting two users using different browser software to have an identical experience fails to embrace or acknowledge the heterogeneous essence of the Web. What Does “Support” Mean? http://developer.yahoo.com/yui/articles/gbs/
- 16. Support? As web developers, how do we "support" a specific browser?
- 17. Support? We allow every user to consume as much visual and interactive richness as their environment can support. What Does “Support” Mean? http://developer.yahoo.com/yui/articles/gbs/
- 18. How are Grades of Support Determined? Identified or Unknown Common or Rare Capable or Incapable Modern vs Antiquated
- 20. C-grade HTML YES CSS NO JavaScript NO Minimum level of support for a guaranteed experience Content delivered only as semantic HTML CSS and JS are withheld Sample of browsers tested
- 21. C-grade HTML YES CSS NO JavaScript NO IDENTIFIED vs UNKNOWN COMMON vs RARE CAPABLE vs INCAPABLE MODERN vs ANTIQUATED IE < 6 Firefox < 3
- 22. A-grade HTML YES CSS YES JavaScript YES Highest level of support Content is fully delivered Fully tested
- 23. A-grade HTML YES CSS YES JavaScript YES IDENTIFIED vs UNKNOWN COMMON vs RARE CAPABLE vs INCAPABLE MODERN vs ANTIQUATED Chrome on XP IE 8 on XP and 7
- 24. X-grade HTML YES CSS YES JavaScript YES Mid-level level of support Content is fully delivered NOT tested
- 25. X-grade HTML YES CSS YES JavaScript YES IDENTIFIED vs UNKNOWN COMMON vs RARE CAPABLE vs INCAPABLE MODERN vs ANTIQUATED Maxthon Flock
- 26. GBS – November 2010 Source: http://developer.yahoo.com/yui/articles/gbs/
- 27. Updates www.yuiblog.com Issued quarterly
- 28. Q4 2010 Updates • Chrome updates a lot, XP Chrome is best benchmark • Added A-grade for WebKit browsers on iOS & Android • Move Firefox < 3 to C-grade • Forecast A-grade for Firefox 4 & IE9 on Windows 7 upon release • Forecast moving IE6 from A-grade to C-grade in Q1 2011 Source: http://yuiblog.com/blog/2010/11/03/gbs-update-2010q4/
- 29. GBS at KU • We target all A-grade browsers • Don’t (currently) withhold CSS/JS from old browsers • Will drop IE6 “support” in next template (date unknown)
- 30. Browser Stats at KU www.ku.edu 2,000,000 visits per month 36% 32% 24% 7% Source: Google Analytics
- 31. Browser Stats at KU www.ku.edu 2,000,000 visits per month 36% IE8 26% IE7 8% IE6 0.01% (27,000) Source: Google Analytics
- 32. Questions? Source: http://xkcd.com/519/