Do end-users know the difference between AJAX and DHTML?
Some users claim to have seen AJAX-enabled websites. Do end-users and developers know the difference between AJAX and DHTML?
When I mean refreshing, I don't mean its a breath of fresh air. I mean the web page doesn't require any data from the server.
Let's draw up a scenario: You want to recommend an article to a friend through the web site's email function. You arrived at the web page and start filling out your name and email adresss, and their name and email address and maybe a little comment. All thats left is to press the Send button. Bottom line, you HAVE to contact the server to send the email.
If you wanted to jazz up the site, you could use AJAX to send the data back to the server without doing a complete page refresh. The key to AJAX is the XMLHTTPRequest function. For web developers, this is the hinge pin for AJAX. If you use this function anywhere on your site, more than likely, you are using AJAX.
So how do you know when a site is using AJAX? Let's get back to our example. When you press the Send button (or user event of some kind), your current page requires data from the server, and you receive an immediate response to the screen without a page refresh, you are using AJAX. If you press the Send button and the page refreshes completely, you are not using AJAX.
Jonathan Danylko is a freelance web architect and avid programmer who has been programming for over 20 years. He has developed various systems in numerous industries including e-commerce, biotechnology, real estate, health, insurance, and utility companies.
When asked what he likes doing in his spare time, he answers..."programming."
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