What is agile development process

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【 Background introduction 】【 Knowledge analysis 】【 common problem 】【 Solution 】【 Coding of actual combat 】【 Expand the thinking 】【 More discussion 】【 reference 】

Eight aspects of in-depth analysis of back-end knowledge / Skill , What this article shares is ：

【 What is agile development process 】

This word suddenly sounds very tall , In fact, it is now the mainstream team development process 了 . One . Let's talk about the official definition first ：

Agile doesn't mean a specific methodology 、 Process or framework , It's a set of values and principles . Development methods that conform to agile values and principles include ： Extreme programming (xp) （XP）,Scrum, Lean Software Development （Lean Software Development）, Dynamic system development method （DSDM）, Feature Driven Development （Feature Driver Development）, Crystal development （Crystal Clear） wait . All these methods have the following common characteristics ：

1. Iterative development . That is, the whole development process is divided into several iteration cycles , Each iteration cycle is a fixed or indefinite time block, and the duration of each iteration cycle is generally short , Usually one to six weeks .
2. Incremental delivery . Products are delivered gradually at the end of each iteration cycle , Instead of one-time delivery at the end of the whole development process . Each delivery can be deployed to the user application environment and used by users 、 Products that can bring immediate benefits and value to users .
3. Development team and user feedback drive product development . Agile development method advocates that users can participate in the whole development process . This enables demand changes and user feedback to be dynamically managed and timely integrated into the product . meanwhile , The team can also provide timely feedback on the needs of users .
4. Continuous integration . New functions or requirements changes are always integrated into the product as often as possible . Some projects are integrated at the end of each iteration cycle , Some projects do this every day .
5. Development team self-management . Have a positive 、 Self managed 、 A development team with free communication style , Is an essential condition for every agile project . People are the core of agile development . Agile development always takes people as the center and establishes the development process and mechanism , Instead of imposing processes and mechanisms on people .

Two . Then there is agility, which I understand

Mainly about our company's own development process , Because the contact time is still shallow , So there's something that may not be up to standard , I hope you can include .

Requirements review （ The participants are Customer + product +UI+ Development + test , That is, all personnel ） Mainly the product personnel explain the needs , Users need to give feedback or comments , Other personnel can put forward their own opinions accordingly .

Story Divide （ product +UI+ Development ） Products are based on UI The prototype diagram made explains the system composition and operation to developers , Divide the whole website into fine-grained story To illustrate , Developer （ Front end and back end ） You also need to know what key points you should pay attention to .

Personnel division （leader+ Development ） Mainly from the project team leader according to story Divide , Divide front-end and back-end developers story, Developers estimate the time required according to their own situation .

The project design （ Database design documents 、 Interface design documentation 、 Project design document ） First design according to the actual situation of the system DB, Including the names of databases and tables , And specific fields . Then design the interface document , Design according to pages and functions , Including the specific request address and input / output parameters . Finally, according to the difficult points in the interface document, do the scheme design document , Analyze the problems encountered and come up with at least two specific solutions .

Program review （ All personnel ） Other personnel give their own opinions on the scheme review given by the front-end and back-end , If there is a problem, start again next time .

Zen task split （ Developer ） After the scheme is reviewed and approved, developers need to split it according to the estimated total development time story, It can be divided into several small tasks , But the time of a task should not exceed 4 Hours .

Development （ Project daily + Work daily + Progress mail ） Problems encountered in the actual development process every day can be written into the project daily ; Write a daily work report on the completion of daily tasks ; Compared with the progress of the whole system, you need to write a progress email .

end-to-end （ Interface ） test （ Developer ） The front end has written the page , The back end implements the interface , You can conduct end-to-end testing , It can be tested remotely , You can also test locally .

Pressure test + Integration testing After the system is completed, you need to use Jmeter Simulate user access , By setting threads to improve the concurrency, we can achieve a certain effect , The data generated by the test needs to be summarized into a test report .

Demo For the double offer , This is the last program , Under the review of the front and rear senior brothers , It is mainly the front-end personnel who perform the system demonstration , Whether each function is realized 、 Whether the page meets user requirements 、 Is there anything that needs to be improved . If there is a problem after the comment, revise it and review it again ; If there is no problem, then the second round project is completed .

Such a process comes down , During the special period, the good operation of all links and the teamwork are important factors to ensure the normal realization and delivery of the project , Agile development emphasizes the full initiative of people , Through this mutual cooperation development mode , I believe that in the era of front and back-end classification development , The company or team can better complete the project entrusted by the user within the agreed time .

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