Definition of Done
The Definition of Done is used for creating a shared understanding of when a Product Backlog item can be considered done.
Definition of Ready
Definition of Ready serves as a precondition for an item from Product Backlog before entering a Sprint/ Iteration backlog to prevent problems before it starts.
DEEP Product Backlog
DEEP acronym for Agile Product Backlog, consisting of Detailed Appropriately, Estimated, Emergent and Prioritized principles.
Lightweight framework - complex problems poster. Scrum is a framework not only for software development guiding the increment creation process, while offering enough freedom.