COM+ Unleashed

Multitiered Design

As applications evolve and become more complex, it is sometimes necessary to break one particular tier into two or more. This results in multitiered, or n-tiered, architectures. Although the fundamental interaction with a user might be the same (present data, gather data, and store data), it is sometimes easier to break the three basic tiers into several pieces.

For large complex applications with dozens of developers, it is much easier to work with an n-tiered architecture than a three-tiered one because the work can be carried out separately in finer granularity. COM+ assists in n-tier development because developers can create components that transparently communicate across boundaries.

Consider Figure 2.6. This is an actual ...