The UML sequence diagram for a DevOps CI/CD pipeline has a developer who commits code to the version control system, which initiates the build process at the Continuous Integration (CI). The CI server runs automated tests, and if they are successful, then a Docker image is created and stored in a container registry. The deployment server retrieves this image from the registry or pulls it from other sources such as git repositories. In case any of these tests fail, an alert is sent back to the developer. Herein lies an automated workflow that guarantees efficient and dependable software delivery.