[Bamboo Cloud docs]
[Bamboo Knowledge Base]
A task:
Tasks may make use of an executable if required. Tasks are configured within the scope of a job. A job can be configured to execute a number of tasks, on the same working directory. For example, before executing a Maven goal, the user could substitute specific files within the working directory, substitute version numbers, check out source repositories, or execute a script.
Final tasks for a job are always executed, even if previous tasks in the job failed.