This article will tell you about the 8 steps of the software development process and the knowledge points corresponding to the specific process of software development.
How to develop software
The software development process or software process is the development life cycle of software development each stage realizes software requirements definition and analysis, design, implementation, testing, delivery and maintenance. A software process is the steps that should be followed when developing and building a system, and it is a roadmap for software development.
How to do software development?
The software development company process refers to the general process of software development and design, including the overall structure of the software, the composition of modules, the design of functions, the compilation of programs, debugging, joint debugging, testing and other processes. The main steps are: project analysis, determined development, requirements analysis, design, programming, software testing, software delivery, acceptance, and maintenance.
Software development must be developed in accordance with certain procedures and technical specifications. Every member of the software development team follows a unified specification to design, develop, test and communicate. Only then can the efficiency of development be improved. The following are the eight steps of the software development process:
- The first process of software development is the analysis and determination of project development. Mainly, after the software developer determines the project development, it needs to discuss with the demand side to determine the goals and specific needs of the demand side software development.
- The next step is demand analysis. This step is also the stage where concrete ideas for the normal implementation of software development are identified. After confirming that software development can be carried out, conduct a detailed analysis of the software functions that the customer needs to achieve. To maintain the smooth flow of the software development process, it is vital to take into account potential changes in the process, create plans for demand adjustments, and react to unique events as they arise.
- The next step is software design. The design should be carried out according to the analysis results of software function requirements in the previous stage, which involves the software design framework structure, software system modules, and software system database, and is mainly divided into two parts: overall design and detailed design.
- The next step is the implementation steps of programming. Programming is also software-based design, where all parts of software design are implemented through computer program codes. Programming is written by uniform and standardized program rules, which ensures the comprehensibility of software programs.
- The next step is software testing. That is, after the client software is implemented with programming codes according to the design, it is a software program. After completion, it is necessary to modify the written program to form an overall framework, and the function is unit, assembly, and system testing in three stages, the correctness of the program, and the adequacy of the function required by the customer to determine whether the software meets the development requirements. This is also a discovery problem. , The process of correcting the problem.
- Software development is completed through the above core links. Next, after the software development, the customer’s requirements are met, the software system is handed over to the customer, and the software installation program, database data dictionary, “User Installation Manual”, and design report are delivered to the customer. , test reports, and other documents to guide customers to install software and installation skills. Remind customers to pay attention to the operating status of the software, the environment, the detection and precautions of servers and related middleware, understand the actual operation method and use process of the customer’s software, and realize the tasks stipulated in the contract.
- After the user accepts the software development delivered by the development, the actual operation runs the test. After satisfactory results are achieved, the developed software is checked and accepted.
- Custom-developed software usually needs to provide after-sales service, maintain the software, or modify the application software program according to the new needs of users, so as to continuously meet the actual needs of customers.
What are the steps involved in software development?
Typically, software development is broken down into five phases:
1. Problem definition and planning
In this stage, the software development and requirements are discussed together, mainly to determine the software development goals and their feasibility.
2. Demand analysis
In the case of determining the feasibility of Software development services, a detailed requirement analysis is carried out for each function that the software needs to realize. The requirements analysis stage is a very important stage. If this stage is done well, it will lay a good foundation for the development of the entire software project. “The only thing that remains constant is change itself.” Similarly, software requirements are constantly changing and deepening during the software development process. Therefore, we must customize a requirements change plan to cope with this change, so as to protect the normal progress of the entire project.
3. Software design
In this stage, it is necessary to design the entire software system according to the results of requirements analysis, such as system framework design and database design. In general, there are two types of software design: overall design and detailed design. Also the software design will lay a good foundation for software programming.
4. Program coding
This stage is to convert the results of software design into program codes that can be run by the computer. In program coding, it is necessary to formulate a unified and standard-compliant writing specification. To ensure the readability and maintainability of the program. Increase the program’s capacity for operation.
5. Software testing
After the software design is completed, strict testing should be carried out to find and correct the problems existing in the software throughout the software design process. The entire testing phase is divided into three phases: unit testing, assembly testing, and system testing. The testing methods mainly include white box testing and black box testing.
Software development process
The specific process is as follows:
1. Start
In the project initiation stage, mainly determine the goal of the project and its feasibility. We need to analyze the background of the project, the stakeholders, the problems to be solved, and so on. And formulate the project charter and form the project team, including: product manager, architecture engineer, UI engineer, development engineer, test engineer, etc. After the above preparatory work is completed, a project kick-off meeting is held, and after the kick-off meeting is over, the next step is entered.
2. Planning
In the planning stage of the project, the project manager needs to determine the scope of the project with the project demander and relevant stakeholders of the project, and create a WBS (decompose the work thoroughly, sort out the logical relationship between them, and use the principle of integration, division and integration to organize) , to determine the project milestones and project plan. At the same time, formulate the project management plan, including cost and quality. Risk prediction and control programs.
3. Demand
In the requirements stage, it is necessary to analyze the collected requirements, write PRD documents (PRD is to split the macro-abstracted business into specific functional requirements, and present them in text or images), UI design, high-definition Really designed.It then moves on to the requirements review, and if the review is successful, it moves on to the following stage.
4. Design
In the design phase, designers design the software system according to the requirements document, including data structure, system architecture, business model and rules, process control, module interface, etc. Output outline design, detailed design documents, and database design specifications, etc.
5. Development
After clarifying the requirements, the development engineer officially enters the coding stage, and selects the appropriate development environment, development tools, development language, etc. to implement according to the product prototype diagram, UI effect diagram, and design documents. This stage is also a very long and difficult stage. , is also the core of software implementation.
6. Function test
Testing software is an important means to ensure software quality. After the development engineer completes the development, it can be handed over to the test engineer for testing. Test engineers test BUG to feedback to the development, and the development makes changes. Functional testing usually needs to be performed many times until the test passes and the quality requirements are met.
7. End-to-end testing
In the end-to-end testing phase, testers design end-to-end test cases that can cover the entire process based on the complete business process, and then conduct a comprehensive test on each module of the system based on the end-to-end case to ensure that the system can meet the requirements and acceptance quality standards.
8. User Acceptance Testing
The user acceptance test stage is also the usual UAT (User Acceptance Test) user acceptance test stage. User acceptance test is the final stage where the end user can check whether the software meets the business requirements.
UAT is performed by end users who understand the requirements and understand the purpose of building the software.The programme is tested one final time before running. End users use real-life scenarios and build UAT test cases for real data, and user acceptance testing plays an important role in verifying that software meets these business requirements before end users go live.
9. Online
The system will be placed into trial operation after passing all the tests and coming to an agreement with the client or superior, and it will go online after being stabilized.
Go-live includes: go-live deployment, post-deployment verification, collation of deliverables (requirements documents, design documents, installation and deployment manuals, product help, etc.) and O&M handover.
10. Closing
At the closing stage of the project, hand over the project results, release the project team, conduct project review and summary, project report, and complete the project completion.
Software development steps
The main steps of software development are: project analysis, determined development, requirements analysis, design, programming, software testing, software delivery, acceptance, and maintenance.
Specific steps are as follows:
- The first process of software development is the analysis and determination of project development. Mainly, after the software developer determines the project development, it needs to discuss with the demand side to determine the goals and specific needs of the demand side software development.
- Requirements analysis, this step is also the stage of determining the specific ideas for the normal implementation of software development.
- Software design should be designed according to the analysis results of software functional requirements in the previous stage, involving software design framework structure, software system modules and software system database, mainly divided into two parts: overall design and detailed design.
- The implementation steps of programming, programming is also based on software design, and all parts of software design are realized through computer program codes.
- Software testing, that is, after the customer software is implemented with programming codes according to the design, that is, the software program. After completion, it is necessary to modify the written program to form an overall framework, and the functions are unit, assembly, and system testing in three stages.
- Software development is completed through the above core links. Next, after the software development, the customer’s requirements are met, the software system is handed over to the customer, and the software installation program, “User Installation Manual”, test reports and other documents are delivered to the customer to guide the customer to install the software and installation skills.
- After the user accepts the software development delivered by the development, the actual operation runs the test. After satisfactory results are achieved, the developed software is checked and accepted.
- Custom-developed software usually needs to provide after-sales service, maintain the software, or modify the application software program according to the new needs of users, so as to continuously meet the actual needs of customers.
That’s all for the introduction of the 8 steps of the software development process. We appreciate you taking the time to read the information on this website.