Product Backlog Refinement (PBR)

Product Backlog Refinement (PBR) is the act of breaking down, adding deatils (such as: description, order and size) and further defining Product Backlog items into smaller more clearer items.

PBR is not a prescribed scrum event, rather an ongoing activity.

PBR used to be called Product Backlog Grooming in older Scrum Guides.