HTML 5
The Next Generation of Markup on the Web
What?
●
New version of HTML
●
Initial work by the WHATWG (2004)
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Work-in-progress recently adopted by the
W3C (2007)
Who?
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WHATWG
●
W3C HTML-WG
–
Apple
–
Apple
–
Mozilla
–
Mozilla
–
Opera
–
–
Anyone who joins the
mailing list (you?)
–
Microsoft
Opera
–
Others
–
Public Invited
Experts (you?)
Why?
●
There’s a lot of information on the web
Most of that information is text/html
●
Most (>95%) of that HTML is syntactically invalid
●
Conclusion:
● HTML is important and isn’t going away any time
soon
●
●
We should evolve HTML rather than ditch it
But the vast legacy creates problems
Why (continued)?
●
●
HTML 4 – 1997
–
Underspecified
–
Inconsistent
–
Does not match reality
–
Missing features needed to compete with
propriety technologies (Flash, Silverlight, etc.)
XHTML 2
–
Requires XML
–
Not backward compatible (cannot be
implemented in current browsers)
How?
●
Identify use cases
●
Identify possible solutions
●
●
Pick the best solution according to
constraints like compatibility, accessibility,
etc
Important to collect as many different
inputs on use cases as possible
–
Need input!
A HTML 5 Document
Hello World!