Continuous integration is a practice where developers integrate code into a shared repository frequently, such as daily, and automated builds and tests are used to detect errors. Continuous deployment is an approach where teams release software in short cycles to ensure it can be reliably released at any time. The principles of continuous integration and continuous deployment (CI/CD) include automating all build, test and deployment processes; keeping everything in version control; committing code frequently; and not merging broken code. CI/CD aims to release software faster through automation and frequent integration and deployment.