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| Criterion |  Innovation Brainwriting |  Systems Thinking Current Reality Tree |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | 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. | 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. |
Complexitydifferent | Low | High | Low |
Timedifferent | 15-30 min | 2-6 h | 15-30 min |
Participantsdifferent | 3-12 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Current Reality Tree, Core Problems, Intervention Ideas | Root cause notes, Countermeasures |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | Systems thinkingRoot causeConstraintsCausality | Root causeIncidentLeanProblem solving |
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