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Hour 24. Crystal Reports in Applications... > Building Advanced Web Applications

Building Advanced Web Applications

The Simple Web Applications scenario focused on getting reports onto the Web and providing a basic level of customization via parameter fields, record selection formula, and database logon credentials. Whereas that will meet the needs of many, some developers want to build more interactive applications that create reports on-the-fly, modify report layout and structure, and other similar actions. These kind of applications provide a higher level of analysis and ad hoc capabilities. To meet these needs, in addition to the Report Viewers in COM, .NET, and Java, Crystal Reports 9 comes with a powerful Report Application Server SDK.

The Crystal Enterprise Report Application Server is designed for the Web. It is composed of two components: the report processing server and the SDK. The SDK is provided in COM, .NET, and Java platforms. These two components can reside on the same machine, but they can also be separated into two tiers. This means that the overhead of report processing can be offloaded from the Web server to a dedicated reporting server, while still retaining a rich SDK on the Web server. The SDK communicates via open TCP/IP protocols with the Report Application Server. This section focuses on various scenarios with the Report Application Server SDK.


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