CI/CD is a best practice to develop applications in which code changes more frequently and rapidly. Sometimes, it is also known as CI\CD pipeline. It is widely used in DevOps and also an agile methodology.
Continuous integration is a coding philosophy or deployment practice in which developers integrate their code in a shared repository several times a day. Because modern application requires developing code in different platforms. The goal of continuous integration is to establish an automated mechanism that builds, test, and package the application.
Continuous delivery starts where CI ends. It automatically delivers the application to the selected infrastructure. CD ensures the automated delivery of code if any changes are made in the code.
