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| Criterion |  Innovation How Might We |  Operations Fault Tree Analysis |  Innovation Lotus Blossom |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem. | 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. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 30–45 min | 2-6 h | 45-90 min | 30-60 min |
Participantsdifferent | 1-10 | 3-8 | 3-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | HMW Questions, Challenge Framing, Idea Prompts | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Lotus Diagram, Idea Themes, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | FramingOpportunityIdeationQuestions | RiskRoot causeSafety | BrainstormingIdeationCreativityDivergenceWorkshop | BrainstormingIdeationCreativityRisk |