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I am looking for the proper architecture for solving the real time appointment scheduler application. &nbsp;All clients will be connected to the server hosted with SQL Server 2000/2005/2008. Any changes of appointment data, the clients will get the notification from the server. The client will pull/refresh the data for the user interface. <br />
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Any article/source code/ recommeded architecture are much appreciated.<br />
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I am looking for the proper architecture for solving the real time appointment scheduler application.  All clients will be connected to the server hosted with SQL Server 2000/2005/2008. Any changes of appointment data, the clients will get the notification from the server. The client will pull/refresh the data for the user interface. 

Any article/source code/ recommeded architecture are much appreciated.
 

Publisher-Subscriber + WCF solution for real time appointment scheduler solution

Programming theory deals with the design, implementation, analysis, characterization, and classification of programming languages and their individual features, along with introductory programming concepts like program structure, variable declaration and conditional and looping constructs. Sub-disciplines include the formal semantics of programming languages, type theory, program analysis and transformation, comparative programming language analysis, metaprogramming, domain-specific languages, compiler construction and run-time systems.

Programming Theory

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).