All the scrum ceremonies are designed to implement most of Agile values and principles. However, only the retrospective ceremony is specifically mentioned as a principle in the agile manifesto.
Principle number 12: “At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly”.
In order to keep the retrospective valuable, it requires from the facilitator (usually the scrum master) to invest time in order to prepare himself or herself for the next retro. The preparation includes observing and taking notes during the iteration, learning new activities to spark ideas and encourage participates involvement, and creativity to keep the retrospective interesting and fun.
Recently, a scrum master of a team, within one of my customers I worked with during the last 3 months, had very good, valuable, and creative retrospective. I want to share this retrospective plan with you - it might help you prepare your next retrospective.
Some background: the team is within the “norming”stage. It has begun to be effective, and focusing on cooperation.
The scrum master shared with me that he feels that on one story the team preforms like in the movie “The Avengers”- the team is collaborating together, and like a super heroes, they are getting the work done. However, on another story he feels the team performs like in the movie “The never-ending story” - it is being dragged from one iteration to another. This is how we come to the idea of retrospective from the movies.