Microsoft® .NET Distributed Applications: Integrating XML Web Services and .NET Remoting
by Matthew MacDonald
Designing in Tiers
Terms such as three-tier, n-tier, and multitier have been hotly hyped in programming circles. These terms mean widely different things to different people. Some use them to refer to the process of physically partitioning an application, and others use them to talk about logically separating the functionality of an application into layers. This book uses the latter approach.
Three-tier architecture began as an extension of the commonsense idea that different code performs different types of tasks. Three-tier architecture separates an application’s functionality into three categories: presentation logic, business logic, and data logic (as shown in Figure 10-4). The presentation logic handles the user interface tasks. The business ...
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