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| Criterion |  Systems Thinking Future Reality Tree |  Innovation Design Thinking |  Innovation Reverse Brainstorming |  Innovation Morphological Analysis |
|---|---|---|---|---|
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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. | 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. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 2-4 h | 1 Tag bis mehrere Wochen | 30-60 min | 1-3 h |
Participantsdifferent | 3-8 | 4-10 | 3-12 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Problem Statement, Prototype, Test Learnings | Reverse Ideas, Risk Themes, Solution Ideas | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | Theory of ConstraintsSystems thinkingChange | InnovationPrototypeResearch | BrainstormingIdeationCreativityRisk | IdeationInnovationCreativity |