Introduction - If you have any usage issues, please Google them yourself
The online bookstore system is based on the centralized and unified planning new model of data management database design. In the books, customers, orders, administrator of information management, in fact, is the books, customers, orders, data management administrator. Its development process is multi-tier distributed application creation process, including: data layer, intermediate layer, that layer, the development of multi-tier distributed applications, a possible scenario is a creation of a layer, mostly from the data layer to start, and then moved to middle-tier business rules object, and finally to create the user interface layer.