Figure 1. Relationship between Configurations, Stages and Actions.
Stage gates are coupled with stages and act as a road block after the completion of each stage. Stage gates allow you to define a list of conditions that must be met after that stage has finished. The build will only continue if these conditions are met. For example, if you have a test stage that runs tests on your compiled project then you can set the test stage gate to only continue the build if all tests completed successfully.
Figure 2. An Example Build Stages Pipeline
An action is a single step within a stage that usually performs a very simple task. These actions are the steps that actually perform your build process. Most actions in Continua CI act as a wrapper around an executable provided by the user. The built-in actions in Continua CI range from advanced actions like MSBuild, FinalBuilder and Ant to simple actions like copying or deleting a file. Actions can also be of the flow control type which dictate the execution flow of that particular stage. For a full list of actions see Actions Reference.