In agile methodology, "DoR" stands for "Definition of Ready." This concept is essential to ensure that user stories are adequately prepared before they are included in a sprint for development. The Definition of Ready outlines a set of criteria that each user story must fulfill to be considered actionable by the development team. This approach helps in preventing any ambiguity or shortcomings at the outset of the sprint, promoting a smoother workflow and enhanced productivity.
In the agile framework, having a well-defined Definition of Ready allows the team to focus on those items that are clear, well-scoped, and feasible within the sprint's timeframe. By ensuring that user stories meet these criteria before they are added to the sprint backlog, teams can enhance their chances of successful delivery.
The other options touch on concepts related to the development and completion of user stories but do not specifically define what "DoR" signifies. The definition of "done" pertains to the criteria for completing tasks, while the criteria for refinement sessions and testing are distinct concepts that are not directly encapsulated by the Definition of Ready.