Like other applications, my main project runs through several quality gates before being deployed on the production stage. For example, there is a developer stage, which simply is the locally running version on every developer machine, and a test stage. This test stage is similar to the production setup and can be used to test features before they are merged into the main branch of your version control system. Many projects use an additional quality stage which runs the latest stable build so the customer can test, too. The deployed system behaves differently for every stage.
