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| Criterion |  Innovation How Might We |  Systems Thinking Current Reality Tree |  Operations Causal Factor Analysis |
|---|---|---|---|
Purposedifferent | With a stuck problem carrying many implicit assumptions, the method translates observations into open, workable questions. It sharpens the problem frame without pre-thinking the solution, turning frustration or fuzziness into a search space with clear direction. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Low | High | High |
Timedifferent | 30–45 min | 2-6 h | 2-6 h |
Participantsdifferent | 1-10 | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | HMW Questions, Challenge Framing, Idea Prompts | Current Reality Tree, Core Problems, Intervention Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | FramingOpportunityIdeationQuestions | Systems thinkingRoot causeConstraintsCausality | CausalityIncidentRoot causeTimeline |
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