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| Criterion |  Agile 4Ls Retrospective |  Innovation Morphological Analysis |  Innovation Reverse Brainstorming |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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. | For a search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 45–75 min | 1-3 h | 30-60 min | 30-60 min |
Participantsdifferent | Team members involved | 2-8 | 3-12 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | 4Ls Board, Learning Themes, Improvement Actions | Morphological Box, Concept Combinations, Idea Shortlist | Reverse Ideas, Risk Themes, Solution Ideas | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | RetrospectiveLearningReflectionTeam | IdeationInnovationCreativity | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityWorkshopDivergence |