Agile? DevOps ?

In the Internet industry , One of the endless topics of discussion is ： Agility and DevOps. For these two concepts , The processes are different from each other ; But they still have some similarities .

agile

Agile methodology is a practice , It promotes the  SDLC（ Software development lifecycle ） Continuous iteration of development and testing . In agile methods , Development and testing activities are carried out simultaneously , This involves  SDLC  Continuous iterations of development and testing in the process .

The four core values of agile software development emphasized in the Agile Manifesto are ：

• Individuals and interactions are higher than processes and tools

• Working software is higher than detailed documentation

• Customer cooperation is higher than contract negotiation

• Responding to changes is higher than following the plan

Agile is a software development process , It meets the quality and standards of the Agile Manifesto . It is based on iterative development , Focus on the cooperation of cross functional teams , To get the solution you need .

The agile development process decomposes products into small pieces and integrates them for final testing . It can be realized in many ways , Include  scrum、XP、 Kanban, etc . This approach emphasizes interaction 、 Incremental and progressive development , One or the other way will also affect the total development cost .

However, the overall software development cost of agile development , It depends on the specific method used and the constraints and requirements of agile methods on the program .

DevOps

Software development methods DevOps It's a combination of two words , That is, development and operation . It represents the consistency of development and operation . Basically , It is a technology used by internet professionals and teams to collaborate and build relationships .

Similar to agile ,DevOps There are many ways to integrate , Include  scrum、 Kanban, etc . It allows faster and automated deployment of code . It also helps organizations deliver applications and services faster .

characteristic

differences

Methods and deployment

agile ： In agile software development method , The development team focuses on creating and publishing software .

DevOps：DevOps Use deployable and reliable pre build tools . It has no role in software development . Besides , have DevOps Of developers use the waterfall method to develop applications .

Number of team members

agile ： If you start with the application development of agile methodology , The project needs a huge team . however , Working with many people means that it may hinder the speed of work .

DevOps： This requires the collaboration of different teams . In this way , The development team gets solutions and services for free , To use models like Kanban and scrum Same job . However , When the application needs to be exposed , Each team must work with the deployment team to continue the plan .

Cross function and segmentation

agile ： Agile methods enable everyone to do all kinds of work skillfully . Developers who use agile methods become generalists ; therefore , They can replace each other without hindering the work of the project . It improves efficiency 、 Quality and strengthen the communication between team members , At the same time, it promotes the development speed .

DevOps： Need two independent teams ： Project development and operation professionals . Both teams need to work closely with each other to get the best results .

Different planning methods

The planning methods of the two application development processes are different .

agile ： In agile methods , Developers develop new versions and updates within a given time frame . The whole time frame and process is called  Sprint. The time when developers are closest to realizing multiple required functions after receiving feedback .

DevOps： On the other hand ,DevOps  Only for optimizing business operations . Usually , The project manager has two options . In the first case , You can deploy updates as soon as they are visible or when all updates are visible . Besides , Keep the business unit in mind when deploying these updates . thus ,DevOps  Developers in will not lack time to deploy updates , Instead, it aims to obtain the largest business operation .

The main difference ： Agility and  DevOps

• Agile is an iterative approach , Focus on collaboration 、 Customer feedback and small quick releases .DevOps  It is a practice that brings development and operation teams together .

• Agile focuses on constant change , and DevOps Focus on continuous testing and delivery .

• Agile requires a small team , and DevOps Focus on a relatively large team .

• Agile uses the left shift principle , and DevOps Then use the principles of left shift and right shift .

• The target area of agile is software development , and DevOps Our target area is to provide end-to-end business solutions and rapid delivery .

• Agile methods focus more on functional and non functional preparation , and DevOps Focus on operation and business preparation .

Similarity

Cooperation process

Collaboration is agile and DevOps Another aspect with common goals . Teams need collaboration , No matter what technology they choose . Besides , Every team needs to share updates about the development process .

Lean concept

Agility and DevOps Methods are widely adopted and a large number of Lean concepts are implemented , Especially in the process of team communication .

raise productivity

Agility and DevOps These two application methods are moving towards the common goal , Both improve productivity . These two methods are very reliable software development methods . Agility drives DevOps Work faster , and DevOps Drive agility to become more fluid .

Can I have them all ？

The good news is , Sticking to one method rather than another is not mandatory . A mixture of the two methods can be used together to ensure efficiency . In software development and deployment , Both can play an important role .

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