Glossary

Professional Scrum Master I (PSM I) Glossary

By The Exam Atlas Editorial Team · Verified 2026-05-29

Plain-English definitions of the Scrum terms for PSM I study. Based on the Scrum Guide, which is authoritative.

TermDefinition
ScrumA lightweight framework for delivering value iteratively.
EmpiricismMaking decisions based on what is observed.
TransparencyMaking the work and process visible.
InspectionFrequently checking progress and artifacts.
AdaptationAdjusting quickly when something is off track.
SprintA fixed-length cycle (one month or less) containing the work.
Scrum TeamThe Scrum Master, Product Owner and Developers.
Scrum MasterAccountable for the team’s effectiveness and Scrum’s adoption.
Product OwnerAccountable for maximising the product’s value.
DevelopersThose who create the Increment.
Product BacklogThe ordered list of what is needed in the product.
Sprint BacklogThe plan for the Sprint: goal, selected items, plan.
IncrementA usable step toward the Product Goal.
Product GoalThe long-term objective for the product.
Sprint GoalThe single objective for the Sprint.
Definition of DoneThe quality bar an Increment must meet.
Sprint PlanningThe event that starts the Sprint.
Daily ScrumA 15-minute Developer event to inspect progress.
Sprint ReviewInspecting the Increment with stakeholders.
Sprint RetrospectiveInspecting and improving how the team works.
VelocityAn optional measure of work completed per Sprint.

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