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| Criterion |  Innovation Reverse Brainstorming |  Decision Making Pre-Mortem |  Innovation Morphological Analysis |  Innovation Lotus Blossom |
|---|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 30-60 min | 20–45 min | 1-3 h | 45-90 min |
Participantsdifferent | 3-12 | Small cross-functional group | 2-8 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Reverse Ideas, Risk Themes, Solution Ideas | Risk list, Mitigation plan, Assumption log | Morphological Box, Concept Combinations, Idea Shortlist | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | BrainstormingIdeationCreativityRisk | RiskDecisionFailurePlanning | IdeationInnovationCreativity | BrainstormingIdeationCreativityDivergenceWorkshop |