The Retrospective is one of five events in Scrum. It’s designed to help Scrum Teams plan ways to increase quality and effectiveness of the Scrum Team. The Scrum Team inspects how the last Sprint went with regards to individuals, interactions, processes, tools, and their Definition of Done. Inspected elements often vary with the domain of work. Assumptions that led them astray are identified and their origins explored.
The Scrum Team discusses what went well during the Sprint, what problems it encountered, and how those problems were (or were not) solved.
Timebox: 3 hours. Less for Sprints of a shorter length.