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Anonymous users2024-02-06Software development is generally divided into five phases, which are:
1. Definition and planning of the problem.
This stage is a joint discussion between software development and requirements, mainly to determine the development goals and feasibility of the software.
2. Requirement analysis: In the case of determining the feasibility of software development, conduct a detailed demand analysis of each function that the software needs to achieve. The requirements analysis phase is a very important stage, and if this stage is done well, it will lay a good foundation for the development of the entire software project.
The only constant is the change itself", and the software requirements are constantly changing and deepening during the development of the software, so we must tailor the requirements change plan to cope with this change to protect the overall project.
3. Software design: In this stage, the entire software system should be designed according to the results of demand analysis, such as system framework design, database design, etc. Software design is generally divided into general design and detailed design.
Also the software design will lay a good foundation for software program writing.
4. Program coding: This stage is to transform the results of software design into a program that can be run on a computer. In the program coding, it is necessary to develop a system.
1. Write specifications that meet the standards. In order to ensure the readability and easy maintenance of the program. Improve the operational efficiency of the program.
5. Software testing: After the software design is completed, rigorous testing should be carried out, and the problems existing in the software design process should be found and corrected. The whole test stage is divided into three stages: unit test, assembly test, and system test.
The test methods mainly include white-box testing and black-box testing.
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Anonymous users2024-02-051. Definition and planning of the problem.
This stage is a joint discussion between the software developer and the demand side, mainly to determine the development goals and feasibility of the software.
2. Demand analysis.
In the case of determining the feasibility of software development, a detailed requirements analysis is carried out on the individual functions that need to be implemented in the software. The requirements analysis stage is an important stage, this stage will lay a good foundation for the whole software development, "the only constant is the change itself", the same software requirements are constantly changing and deepening in the software development process, so we need to develop requirements changes to deal with this change, in order to protect the normal progress of the whole project.
3. Software design.
At this stage, according to the results of demand analysis, the entire software system is designed, such as system framework design, database design, etc., software design is generally divided into overall design and detailed design, and good software design will lay a good foundation for software program writing.
4. Program coding.
This stage is the transformation of the results of the software design into a program that can be run on a computer**. In the program coding to develop a uniform, in line with the standard coding specifications. In order to ensure the readability and easy maintenance of the program. Improve the operational efficiency of the program.
5. Software testing.
After the software design is completed, it is necessary to conduct rigorous testing, and find and correct the problems in the software throughout the software design process. The whole test stage is divided into three stages: unit test, assembly test, and system test.
If it is software development, it is divided into three stages, which should be software requirements analysis, software programming design, and software program testing.
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Anonymous users2024-02-04The life cycle of software development is generally divided into 6 stages: planning, requirements analysis, logical design, programming, debugging, operation and maintenance.
The software life cycle is divided into three stages: software definition, software development, and software operation and maintenance
Software-defined phase.
Make a plan: define the overall goal; feasibility studies; **Solution; Develop a development plan.
Requirements Analysis: Analyze and define the requirements of the software to be developed. Sakura digging.
Software development phase.
Software design: It is divided into two parts: outline design and detailed design.
Software implementation: Converts a software design into a program that is acceptable to a computer**.
Software testing: Validates the various components of the software based on the design of test cases.
Software operation and maintenance phase.
The software is put into operation and continuously maintained in use, with necessary expansions and deletions.
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Anonymous users2024-02-031.System planning phase.
Main tasks: to conduct a preliminary investigation of the environment, objectives and current system of the enterprise, clarify the problems existing in the current system, analyze and analyze the needs of the establishment of a new system according to the enterprise goals and development strategy, study the necessity and possibility of establishing a new system, and put forward alternatives to the proposed new system according to the needs and possibilities.
Document: Feasibility Project Proposal.
2.The system analysis phase (logical design phase).
Main tasks: On the basis of the feasibility study, conduct a detailed investigation and comprehensive analysis of the current system, describe the business process of the current system, point out the limitations and deficiencies of the current system, propose modification plans for the current system, determine the objectives and logical function requirements of the new system, and propose the logical model of the new system.
Documentation: System Analysis Report.
3.System design phase.
Main task: According to the functions specified in the system analysis report, combined with the actual conditions, the technical scheme for the implementation of the logic model is specifically designed.
Documentation: System Design Report.
4.System implementation phase.
Main tasks: purchase, installation and debugging of computers and other equipment, programming and debugging, personnel training, data file conversion, system debugging and conversion, etc.
Document: Rubber Punch System Test Report.
5.System operation and maintenance phase.
After the system is put into operation, it needs to be maintained frequently, record the operation of the system, make necessary modifications to the system according to certain standards, and evaluate the work quality and economic benefits of the system.
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