Final answer:
The Definition of Done is established by the development team with the product owner, often including input from other stakeholders, to ensure a shared understanding of what it means for a task to be complete in Agile methodologies like Scrum.
Step-by-step explanation:
The Definition of Done is created collaboratively by the development team and the product owner, sometimes with input from other stakeholders. In Agile methodologies, particularly Scrum, the Definition of Done is critical; it signifies the criteria that a software feature or product must meet to be considered complete. This includes all the necessary steps such as design, coding, testing, and documentation. It ensures quality and that all the necessary work is done before a feature is considered finished. This concept ensures transparency and provides a shared understanding for the team members regarding when a task is complete.