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15 December 2004

Pass HTML Validation, Collect 1M$

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I was recently pointed to another example of important bandwidth saving due to using proper XHTML and CSS. Nothing very new, but the figure of 1M$ is pretty interesting.

The standout paper was by Brett Jackson from Fairfax Digital, detailing how they moved to validated XHTML with CSS. They deliver 164,000,000 page impressions per month for the major dailies The Sydney Morning Herald and The Age. They do day parting: different kinds of stories are emphasized at different times of day. Later in the day people want gossip, analysis and entertainment but in the morning they want breaking news and weather. He reported they save a million dollars a year on bandwidth costs by moving to validated XHTML with CSS! […]

13 December 2004

GRDDL to annotate XML documents based on their XML Schema

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Dan Connolly recently demonstrated that GRDDL could also be used as a way to tie semantics to a given XML schema, based on the namespaceTransformation property defined in GRDDL.

The only restriction is that it relies on having the said schema served at the namespace URI of the given vocabulary; in other words, it wouldn’t work through xsi:schemaLocation, but that’s probably a very acceptable restriction, especially since the XML Namespace solution scales much better, in that you don’t have to duplicate the information again and again. This very much relates to the namespaceDocument issue the TAG has in its queue

Valid Markup saves battery life

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T-Mobile in their position paper to the Mobile Web Initiative Workshop note that

The very fact that advanced browsers allow greater mark-up flexibility unfortunately reduced the amount of care taken to assure standards compliance and led to a broader use of sloppy mark-up – but unlike to desktop browsing this has quite severe consequences for users of devices with radically limited resources: rendering non-deterministic mark-up has a very real impact on CPU, memory and battery life, and also mostly leads to unwanted and costly data overhead on the radio transmission – for customers and operators all alike.

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Picture of Dominique Hazael-MassieuxDominique Hazaël-Massieux (dom@w3.org) is part of the World Wide Web Consortium (W3C) Staff; his interests cover a number of Web technologies, as well as the usage of open source software in a distributed work environment.