Learn in the textbookComponents of Scrum
DefinitionThe Product Owner (プロダクトオーナー) is the role accountable for maximizing the product's value, deciding what to build and in what order.
ExplanationThis role gathers requests from users and stakeholders, turns them into items on the list of things to build (the Product Backlog), and orders it so that the most valuable items sit at the top. Decisions about that order are left to this role.
AnalogyIt is like the friend on a trip who picks the destinations and the order to visit them: they decide which sights come first, while the others work out transport and logistics.
Memory hookAn owner is the one who holds something. Link it to the person who, as the product's owner, holds the priority order of what gets built.