Designing the System
In the design phase, we will create an application design based on the application architecture, project requirements, and specifications. Gathering all the information needed to design the system is a difficult task, but the most important step is to start writing down the first idea.
System Structure
The system will be composed from the following main component categories:
Core components (Data Access Layer, Business Logic Layer) forming the middle-tier component layers.
Web service components (XML Web service) forming the Service Interface layer.
Website components (ASP.NET website) forming the front-end WebReservation application, a web presentation layer.
Windows Application components (Windows Forms Application) forming the WinReservation application, a Windows presentation layer.
The following figure illustrates the overall system structure, outlining each system component:
As we saw earlier, one major advantage of a service-oriented application is the decoupling...
