When working on a project, two crucial terms to understand are "Definition of Done" and "Acceptance Criteria". Though they serve different purposes, they work together to ensure the project's success.Definition of Done: This is a pre-established checklist that the team uses to confirm that a feature or user story is completed. It typically includes development, testing, and quality assurance processes. It marks the project's finish line and ensures that all necessary steps are taken before considering a feature to be 'done'.Acceptance Criteria: These are conditions that a feature or user story must meet to be accepted by the client or stakeholder. They're used to assess the quality of the user story development, ensuring that each step along the way meets the user requirements and that the final product will satisfy the end user.In summary, the "Definition of Done" provides a clear endpoint for the development process, while "Acceptance Criteria" guide each step of the journey, ensuring that all user requirements are met. Both are necessary for a successful project.