# The Problem CI/CD Solves — CI/CD Fundamentals: Pipelines, Testing and Deployment

Source: https://www.skillbyai.com/en/cicd/cicd-intro

> Understand the problems CI/CD solves, from painful late merges to slow manual releases, and why small frequent changes win.

## Integration hell

Before CI/CD, developers worked on branches for weeks and merged manually. Merging late meant huge conflicts, and deploying meant a person following a fragile checklist by hand — slow and error-prone.

## The assembly line

CI/CD is like moving from hand-built cars to an assembly line: every change moves through the same automated stations (build, test, deploy) in the same order, every time — no station skipped, no step forgotten.

## Small, frequent changes

CI/CD rewards small commits shipped often over giant releases shipped rarely. Smaller changes are easier to test, easier to review, and easier to roll back if something breaks.