Scrum adjustments in the context of the Scrum Guide mean making small, evidence-based tweaks to improve effectiveness.
Adjustments happen in multiple areas of Scrum, including the Product Backlog, Sprint Backlog, Definition of Done, Sprint Planning, user interaction, and refinement practices.
The absence of adjustments indicates a lack of leveraging empiricism and a risk of stagnant progress.
Effective adjustments should be incremental, goal-oriented, and data-driven, avoiding chaotic and directionless changes.