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| Criterion |  Innovation Design Thinking |  Systems Thinking Causal Loop Diagram |  Operations 5 Whys |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | High | Medium | Low | High |
Timedifferent | 1 Tag bis mehrere Wochen | 1-3 h | 15-30 min | 2-6 h |
Participantsdifferent | 4-10 | 2-8 | 2-6 | 3-8 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Causal Loop Diagram, Feedback Notes, Leverage Points | Root cause notes, Countermeasures | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | InnovationPrototypeResearch | FeedbackSystems thinkingCausalityDynamics | Root causeIncidentLeanProblem solving | Systems thinkingRoot causeConstraintsCausality |