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Judicial use of AJAX - 6 Guidelines
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04/12/2006, By Ajax Impact News
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Over Web2.0Blog there is nice article discussing the guidelines for Judicial use of AJAX in web applications.
AJAX is certainly a hot topic at the moment which has led to a number of sites using AJAX where its not necessary or appropriate. This is similar to the situation we found ourselves in when Javascript, Images, Animated Gifs, Flash, *insert hot new thing here* and pretty much every other facet that makes up websites came into being. At the moment, this means that the sign of a good design isn’t how its used AJAX but more where its chosen not to use AJAX. We can cheat a little by following some simple rules when deciding whether to AJAXify a function or not.
Bear in mind that for the purpose of this article AJAX will be referring to any form of asynchronous processing that happens on the client side. So this can just as easily include things like iFrames (the approach most commonly used prior to AJAX) and dynamicaly swapping divs. Its also worth noting that these guidelines apply only to the use of AJAX, you should still follow best practice when designing the rest of the site.
So on to the guidelines, what you all came here to see:
Ensure that you don’t subvert the expectations of your users.
Use a page refresh (and new URL) instead
Make it obvious that your using AJAX
Never sacrifice usibility or accessibility
Ensure there is a fallback
Beware of permanence
 Read Full Article...
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