CI/CD is a method to frequently deliver apps to customers by introducing
automation into the stages of app development. The main concepts attributed
to CI/CD are continuous integration, continuous delivery,
and continuous deployment.
CI/CD is a solution to the problems integrating new code can cause for
development and operations teams (AKA "integration hell").
Specifically, CI/CD introduces ongoing automation and continuous monitoring
throughout the lifecycle of apps, from integration and testing phases to
delivery and deployment.
Taken together, these connected practices are often referred to as a
"CI/CD pipeline" and are supported by development and operations teams
working together in an agile way with either a DevOps or
site reliability engineering (SRE) approach.