The system to support it must manage the acquisition and selling processes of the company.
10.2.2 Update the Service Layer by splitting it into two parts.10.2.1 Design asynchronous version APIs on the Presentation Layer.10.1.2 Lower level design: A rough design of database.10.1.1 User experience: Lack of special handling mechanism for ordinary users.7.1.2 Order Query Subsystem and its Interfaces Specification.7.1.1 Interfaces Between Our System and External Systems.System Analysis and Design Course - YOUMU online bookstore