What methods should software engineering use to establish software development?

Software engineering software development method is as follows:

1. The methods used in software development are mainly divided into structured method, object-oriented method, service-oriented method and prototype method according to the change of time. Some people also call Agile Development and Unified Process (UP/RUP) a software development method.

2. Structured method: a process-oriented development method. Its basic idea is "top-down, gradual refinement", which splits a complex system, simplifies the complex and forms components. It pays attention to the customer first, and the system development process is engineering, documentation and standardization. Strictly distinguish work stages, and each stage has clear tasks and deserved results.

3. Object-oriented method: Object-oriented development method is bottom-up, which is mainly manifested in combining with real things and abstracting everything in the world to form abstract objects. Compared with the structured method, it has better reusability, and the boundaries of analysis, design and implementation are not clear. The key is to establish a comprehensive, reasonable and unified model.

4. Service-oriented method: Service-oriented method is an extension of object-oriented method. Its service modeling is divided into three stages: service discovery (analysis), service specification (agreed specification) and service implementation (concrete implementation).

Therefore, the method mainly has three levels (operation, service and business process); SOAD is divided into three levels: basic design layer (the construction of the bottom layer), application service layer (the interface between services and the coordination of service levels), and business organization layer (the modeling of business processes and the arrangement of service processes).

5. Prototype method: it is suitable for scenes with unclear requirements, including abandoned prototypes and evolutionary prototypes. Abandoned prototype: the prototype is useless after the business is completed; Evolutionary model: based on the original model, it is gradually modified and used all the time.