Fundamentally, agile user stories are short, simple tools to document a single action or intention desired by the targeted user to achieve a goal. The simplest user stories have a format, “As a user ...

As near as I can tell, everyone who's doing Agile is writing requirements in the user story format of "As <role> I need to <do something> so that I can <achieve some goal>." For example, "As a ...

The key difference between acceptance criteria and the definition of done is this: Acceptance criteria are unique to a specific user story or backlog item, while the definition of done applies ...