In an agile project, the Definition of Done (DoD) is a shared understanding among the team about what it means for work to be complete. This includes the completion of all user stories and meeting all acceptance criteria. If the sprint goals were not met, but there were no defects for the new user stories and no new requirements were discussed, it indicates a possible misalignment between the team's understanding of the DoD and the product owner's expectations. To avoid such situations in the future, the project manager should review the DoD with the product owner to ensure that everyone has the same understanding of what it means for work to be complete1.
References: Agile project management focuses on continuous improvement, scope flexibility, team input, and delivering essential quality products2. Agile project management approaches include scrum as a framework, extreme programming (XP) for building in quality upfront, and lean thinking to eliminate waste1. These and many other agile methodologies have in common flexible scope, frequent interaction, and delivering working, tested software2.