Requirements analysis is the first step in software development, which involves close communication and research with users or customers to understand their needs and expectations. During the requirements analysis phase, developers need to clarify the project's goals, scope, features, and performance requirements.
The design stage is to develop the design scheme of the software system's architecture, modules, interfaces, and data structures based on the results of requirements analysis. The design should clearly describe the function, process, and organizational structure of the system, and provide guidance for subsequent development.
Coding is about translating a design into reality. At this stage, developers need to choose the right programming language and technical framework, and follow coding specifications and best practices. At the same time, developers also need to conduct testing and debugging to ensure quality and performance.
Testing is an integral part of software development. It involves many aspects such as unit testing, integration testing, system testing, and acceptance testing. The goal of testing is to find and fix bugs and defects in the software, and to ensure the quality and stability of the software.
Deployment is the process of releasing a software system to production, while maintenance is the process of supporting and updating a deployed software system. At this stage, developers need to ensure the stability and security of the system, and respond to and deal with user feedback in a timely manner.