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One of topics I was most excited about at PDC was Atlas , Microsoft's AJAX implementation. The ASP.NET team is positioning Atlas as not as "just another AJAX framework", but rather an end-to-end framework for developing rich UI in the web browser. It provides a lot of plumbing not just for doing things on the client, but in the communication between the client and server. The Atlas architecture, which Nikhil discusses here , is basically built of 3 major elements: a client script library, a rich component model on the server, and a series of client application services. The client has rich WebRequest, WebResponse and MethodRequest objects that mimic the CLR's http request model. Atlas provides a built-in service that exposes any .NET or COM component through their facade. You can, of course, also connect to any arbitrary web service directly - this service is just a means to access existing objects that don't expose a webservice facade on their own. One of the nicest features is automatic...
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