Product Backlog
An ordered list of everything known to be needed in the product — the single source of work.
Foundational artifact. Scrum, LeSS, and Nexus insist on one Product Backlog across all teams. SAFe creates a hierarchy — Portfolio, Solution, ART, and Team Backlogs.
Across the Frameworks
Scrum
Native*Product Backlog* (one, ordered)
SAFe
Modified*ART Backlog + Team Backlogs* (hierarchical)
LeSS
Native*Product Backlog* (one, shared across all teams)
Nexus
Native*Product Backlog* (one, shared)
Related Terms
Present in Scrum, SAFe, LeSS, Nexus.