Jean-Pierre Norguet's Review

Jean-Pierre Norguet's review of Frank W. Zammetti's JavaWorld article "AjaxChat: Chatting, the AJAX Way"

Article reviewed: Frank W. Zammetti, AjaxChat: Chatting, the AJAX Way, JavaWorld Magazine. Review date: 16 Sep 2006.

I still wonder why the first A in AJAX stands for "asynchronous". As the article shows very clearly, the AJAX-based client-server communication is not asynchronous; the messages are sent periodically from the client to the server. If the data did not change between two messages, a message is lost. True asynchronous communication would be message calls from the server down to the client, specifying the data changes when they occur. Although, such a kind of asynchronous communication would require bi-directional communication support, which AJAX does not provide.

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