The Difference Between Agile, CI/CD and DevOps

The following translation clearly reveals the differences and connections between Agile, Continuous Integration/Continuous Delivery (CI/CD) and DevOps. Although they are different, they support and connect with each other. Agile focuses on the development process, CI/CD focuses on practice, and DevOps focuses on culture.

3 different development tools can be used to build exercises
You cannot build a high-rise building with just one tool, nor can you develop and practice in one go. Agile, DevOps and CI/CD are three distinct tools, each of which is important in itself. When the development team uses these three functions for their intended purpose, the results will be transformative.

Agile development
Agile is focused on removing process barriers and enabling key stakeholders (such as developers and customers) to collaborate more closely on speeding up delivery. Agile emphasizes the continuity of change and acknowledges that as software producers, we do not always understand all the requirements and resources needed to successfully conceive, develop, and deliver high-quality software throughout the entire life cycle.

Therefore, although the meaning of agile has been different in the past two decades, its basic principles remain the same: removing process barriers that empower individuals, rapidly developing operational software, working closely with customers, and actively responding (and Not resist) change.

CI/CD
Continuous integration (CI) is a software engineering practice where team members integrate their work with increasing frequency. Through long-term CI practice, the team integrates at least daily or even hourly, so as to approach the "continuous" level of integration.

Historically, integration has been an expensive engineering activity. Therefore, in order to avoid serious damage to the project, CI emphasizes the automation tools that drive the construction and testing. After CI is implemented, construction and integration work will be reduced, and the team can detect integration errors as soon as possible.

Continuous delivery (CD) is used to package and deploy CI projects to be built and tested. The CD-practice team can build, configure, and package software, and orchestrate how it is deployed so that it can be released to the production environment at any time in a software-defined manner (low cost, highly automated).

As software changes are more frequently put into production, highly functional CI/CD practices directly promote agile development. Therefore, customers have more opportunities to experience product changes and provide feedback.

DevOps culture
DevOps focuses on the limitations of culture and roles in the agile development process. The purpose of DevOps is to solve some pain points caused by over-specialization in the organization and poor communication between different departments, such as the inability to respond quickly or even effectively to production problems. DevOps organizations break the barriers between operations and development by cross-training each team's skills. This method improves everyone's ability to appreciate and participate in each other's tasks, and promotes higher quality collaboration and more frequent communication.

What is CI/CD in DevOps? How do they relate to agile?
How does CI/CD, agile and DevOps relate to real-life development? Engineering teams usually start with CI. DevOps can help organizations understand the configuration, packaging, and orchestration necessary for software throughout the entire lifecycle or even longer - thereby creating more valuable continuous delivery practices. In turn, the practice of CI/CD in DevOps enhances agile development.

in conclusion
The quickest and easiest way to distinguish between Agile, DevOps and CI/CD:
Agile is focused on accelerating the process of change while accelerating delivery.
CI/CD focuses on tools that emphasize automation throughout the software lifecycle.
DevOps focuses on cultural roles that emphasize responsiveness.