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| Criterion |  Systems Thinking Future Reality Tree |  Innovation Rapid Ideation |  Innovation Crazy 8s |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | 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 | High | Low | Low | Low |
Timedifferent | 2-4 h | 5-20 min | 8-15 min | 30-60 min |
Participantsdifferent | 3-8 | 1-20 | 1-10 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Ideenpool, Roh-Shortlist, Cluster | Sketch Set, Idea Shortlist, Direction Options | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | BrainstormingIdeationDivergenceSpeed | BrainstormingSketchingSpeedDivergenceDesign sprint | BrainstormingIdeationCreativityWorkshopDivergence |