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| Criterion |  Innovation Double Diamond |  Operations After-Action Review |  Agile Sprint Retrospective |  Agile 4Ls Retrospective |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | When a sprint is over and friction shouldn't simply be carried forward, it opens the view onto collaboration and patterns. It creates space to see causes and changes together. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | Wochen bis Monate | 20-45 min | Up to 3 hours for a one-month Sprint; shorter Sprints are usually shorter | 45–75 min |
Participantsdifferent | 3-12 | 3-12 | Scrum Team | Team members involved |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Lessons learned, Action items, Event summary | Improvement actions, Team agreements | 4Ls Board, Learning Themes, Improvement Actions |
Tagsno overlap | ProcessDivergenceInnovation | LearningOperationsImprovement | RetrospectiveImprovementLearning | RetrospectiveLearningReflectionTeam |