Re: ajax?

From: Stefano Mazzocchi <>
Date: Fri, 25 Feb 2005 15:53:31 +0100

David R. Karger wrote:
> This article mentions some of the nicest UIs I have seen one the web. Perhaps
> worth investigating this framework for piggy bank, haystack, etc.

Yes, now that even Safari implemented the XMLHttpRequest javascript object


it's possible to fully make use of such asynchronous XML and be
virtually cross platform.

I company I did consulting for implemented something like this in 2000
but using Flash 5, XML-RPC and a cocoon-based backend for the italian
web site of Virgin Music.

Google uses this pure xhtml+css+javascript+xmlhttp+xml while things like
Mappy use Flash+activescript+xml (see waaaay better than
google maps, but much less 'standard' technologies and less use of the
http caching/proxying infrastructure)

Ryan and I already thought about using this 'xml callback' approach to
populate the facet boxes on the side, as a way to avoid downloading
several megabytes for the first page.

In short, if the facet values were too many, show a query box, then
populate the query box with the result, but without refreshing the
page... it's really trivial to do today.

Stefano Mazzocchi
Research Scientist                 Digital Libraries Research Group
Massachusetts Institute of Technology            location: E25-131C
77 Massachusetts Ave                   telephone: +1 (617) 253-1096
Cambridge, MA  02139-4307              email: stefanom at mit . edu
Received on Fri Feb 25 2005 - 14:52:10 EST

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