The improvement of the product and process in the Scrum method is discussed at the "sprint reflection meeting".
The Sprint Retrospective is an opportunity for the Scrum Team to review itself and make an arrangement for enhancements to be instituted amid the following Sprint.
The Sprint Retrospective happens after the Sprint Review and preceding the following Sprint Planning. This is at most a three-hour meeting for one-month Sprints. For shorter Sprints, the occasion is normally shorter. The Scrum Master guarantees that the occasion happens and that chaperons comprehend its motivation. This is the open door for the Scrum Team to enhance and all part ought to be in participation.