? (1) adopts multi-layer service architecture design, which fundamentally ensures the robustness and scalability of the system. -Presentation layer is separated from application layer and service layer. When a new service channel is added, only the application layer module is added to change the content presentation format, without modifying the transaction processing and data communication and processing with the background. -The separation of application layer, service layer and data layer can be connected to different backgrounds without making a lot of changes in business processing. -Therefore, hierarchical design can make the system more flexible and easy to maintain.

(2) The loose coupling between layers makes service to business process configurable and reconfigurable.

(3) The advanced technology and concept of service-oriented and component-oriented have development potential, which can ensure the scalability of product technology.

(4) The system is developed by PHP+MySQL technology and can run on operating system platforms such as Linux and Windows.