
Modern Software Architectures, Systems and APIs ... 23
It can be noted that it may be the travel agency that selects the best flight
out of those offered by various airlines or it can further delegate this task by
invoking a service of another company that specializes in this very process
and does that better for a reasonable fee. Proper selection of such services
and execution of such a complex scenario is discussed in depth in Section 2.2.
2.1.3 Multitier Architectures
FIGURE 2.6: Multitier architecture.
The multitier approach in distributed system design distinguishes multiple,
functionally distinct layers that can be integrated into an application. ...