Continuous delivery and continuous deployment might sound similar to you, however, they aren't the same. While continuous deployment talks about deployment to multiple environments and finally to the production environment through automation, continuous delivery is the ability to generate application packages that are readily deployable in any environment. For generating artifacts that are readily deployable, continuous integration should be used to generate the application artifacts, a new or existing environment should be used to deploy these artifacts, and conduct functional tests, performance tests, and user-acceptance tests through automation. Once these activities are successfully executed without any errors, the application package is considered readily deployable. Continuous delivery includes continuous integration and deployment to an environment for final validations. It helps in getting feedback faster from both the operations as well as the end user. This feedback can then be used to implement subsequent iterations.