The Multi-Tiered Architecture
On Day 1, you learned that one of the design goals of ADO.NET was to efficiently support a multi-tiered programming model. However, before we discuss how you can take advantage of the features of ADO.NET in an application that uses the multi-tier architecture, we need to define it.
Note
There are a variety of terms used in the industry for the approach described in this section. Two of most prevalent are multi-tier and n-tier, so, as I mentioned earlier, these are the two I will use interchangeably in this discussion. In addition, the terms design, approach, architecture, and programming model are all used to convey the same idea: the way that multi-tier applications are put together.
At the most basic level, multi-tier ...
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