design method
The system adopts the structured design method commonly used in software engineering. The system development model adopts the most commonly used waterfall model. The system starts from the feasibility study and goes through requirements analysis, overall design, detailed design, coding, testing and Maintenance and other 7 steps, detailed analysis of the user's requirements for the system, and a serious summary of the functions that the system should realize.
Functional Requirements
The system can be divided into functions: login, registration, query, cooperation, and administrator query. After the user first selects login on the main page, the system jumps to the login interface, and the user enters the account number and password on this page to log in to view himself Furthermore, the user can also choose to register on the homepage, and the system jumps to the registration page, and the user fills in the relevant information on the registration page to become a member of the system, and the system will provide services to the user more quickly; The main function is that the user can directly fill in the courier number on the main page of the system to query the courier information, or select the courier company first, and then fill in the courier number on the courier company page to query the courier information of the courier company; the courier company or Other advertising companies can participate in cooperation on the website to establish a more convenient network service system. Finally, after logging in, the system administrator can view the detailed information of users, couriers, and courier companies, which facilitates the management of data by the system.
The system is divided into five functions: user query, user login, user registration, courier company cooperation, and system administrator management. The five functions seem to be independent of each other and have no obvious direct connection, but in the access to the database. are closely connected, each module accesses the content of the same database, and sometimes even accesses the same table; for example, the login module and the registration module access the same table, and the administrator accesses all the tables in the database.
Design ideas
First of all, after interviewing users and analyzing their needs, and then investigating and analyzing other logistics websites, we can roughly get a rough system scale; From the perspective of the express company; therefore, I combined the needs of these two aspects, and referred to the websites that are widely used today to design this system.
data flow diagram
Database Design
In this system, there are many contents related to the database. Although there are many database software, this system only uses Microsoft Mysql database to connect with the system to serve users, because MYSQL is convenient, fast, easy to program, and simple to operate. The database is the best candidate, so I choose this database to contact and serve the system; next, I will introduce the relevant content of the database used by the system in detail.
The content of the database is accessed in the five modules of the system, especially for information storage, insertion and query; therefore, it is necessary to further analyze the data requirements of the system to determine the structure of the database. According to the division of system functions, the name of the database to be used by this system is bishe, and there are five tables in the database. The following is a detailed introduction to the database.
Catalog screenshot
project screenshot
