The system analyst reconfirms the requirements to the user. Step 2: Outline Design First of all, developers need to outline the software system, that is, system design. Summary design needs to consider the design of software system, including basic processing flow, organizational structure, module division, function allocation, interface design, operation design, data structure design and error handling design, so as to provide basis for detailed design of software. Step 3: Detailed Design On the basis of overall design, developers need to design the software system in detail. In the detailed design, it is necessary to describe the main algorithms, data structures, hierarchical structure of classes and call relationships involved in the implementation of specific modules, and explain the design considerations of each program (each module or subroutine) at all levels of the software system for coding and testing. You should ensure that the requirements of the software are completely distributed throughout the software. The detailed design should be detailed enough to be coded according to the detailed design report. Step 4: Coding In the software coding stage, according to the design requirements of data structure, algorithm analysis and module realization in the detailed design report of the software system, developers start to write specific programs to realize the functions of each module respectively, so as to meet the requirements of the target system in terms of function, performance and interface. Step 5: Test the written system. Give it to the user, and the user will confirm each function one by one after use. Step 6: Preparation for Software Delivery After the software test proves that the software meets the requirements, the software developer should submit the developed target installation program, data dictionary of the database, user installation manual, user guide, demand report, design report, test report and other products agreed by both parties to the user. The user installation manual should introduce in detail the requirements of the installation software for the running environment, the definition and content of the installation software, the specific installation steps on the client, server and middleware, and the system configuration after installation. The user's guide should include the use process, operation steps, corresponding business introduction, special tips and precautions of various functions of the software, and examples should be given when necessary. Guangzhou Dana Training Institute believes that general software development generally goes through the above six steps. Because different companies have different scales, some of these steps are completed by the same person, but in large companies, the general division of software development is very detailed, and one person only needs to complete one small item.