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Difference between Continuous Integration and Continuous Delivery
  • Last Updated : 05 Mar, 2021

Introduction :
In this, you will see the overview of Continuous Integration and Continuous Delivery. And mainly our focus on Difference between Continuous Integration and Continuous Delivery. Let’s discuss it one by one.

Continuous Integration (CI) : 
CI, as name suggests, is an approach that happens before one build as they are testing code. It requires developers to integrate or merge code into shared repository continuously. It generally helps one to save more costs in long run as it is more costly to resolve defects in high level architecture when defects are discovered later on in process. It considered better way of developing software because it reduces number of defect when features are merged and solves works on my machine problem.  

Continuous Delivery (CD) : 
CD, as name suggests, is an approach that uses automation to speed release of new code. In this, teams develop, test, and release software in short cycles as soon as possible. It generally ensures that each change that is made is releasable with complete automation of release process. One has ability to deliver to production. Its most important factor is completeness of checks.  

Continuous Integration vs Continuous Delivery :

S.No.

Continuous Integration 



Continuous Delivery  

1.It is a process of integrating code into mainline code base.  It is a process that involves testing, staging, and deploying code that happens after code is integration for app changes to be delivered to users. 
2.It is especially designed to regularly integrate code changes into shared code repository.It is especially designed to ensure that code can be rapidly and safely deployed to production by delivering each and every change to production.  
3.Its main aim is to provide rapid feedback so that if there is aby defect in code base, it can be identified and resolved as soon as possible.Its main aim is to have code base that is always ready for deployment to production environment.  
4.It uses automation to quickly detect problems and asset new code’s correctness before integration.  It uses automation to speed release of new code.  
5.It is really important as it allows better transparency and farsightedness in process of software development and delivery. It is really important as it makes us release processes more efficiently and repeatable as much as possible.
6.It generally reduces overhead, built confidence, provide consistent build process, mitigate risks, better team communication, etc.  It generally reduces risk and deliver software with fewer bugs, quickly respond to market conditions, release new to market more frequently, etc.
7.It provides more benefits to developers because allows for code produced to be tested automatically and integrated continuously with other developer’s code and that too with existing code base.  It provides more benefits to business users because as soon as code is accepted successfully in CI stage and logical function can be tested, it is released to users. 
8.This process is less complex and less costly as compared to CD.This process is more complex and more costly as compared to CI. 

Conclusion :
In this, we have covered the overview and differences between CI/CD. It is one of the traditional way for developing the software projects. In CI/CD planning, analysis, design, implementation, testing, deploying and maintenance are the main phases.

References :
https://en.wikipedia.org/wiki/CI/CD
https://www.geeksforgeeks.org/ci-cd-continuous-integration-and-continuous-delivery/

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