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| Criterion |  Operations Root Cause Tree Analysis |  Innovation Crazy 8s |  Innovation SCAMPER |  Innovation Morphological Analysis |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | With only a few minutes available and a still-fuzzy solution search, the method forces a wide range of variants. It produces fast sketches before the first idea can settle in, making different directions directly comparable and open to further development. | For an existing solution under pressure to change, the method deliberately opens space for systematic variants. It directs attention to rebuilding, combining, and repurposing rather than only new basic ideas. This produces concrete evolution paths for products, offerings, or workflows. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-3 h | 8-15 min | 30-60 min | 1-3 h |
Participantsdifferent | 2-8 | 1-10 | 2-10 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Sketch Set, Idea Shortlist, Direction Options | SCAMPER Idea List, Concept Shortlist, Variation Notes | Morphological Box, Concept Combinations, Idea Shortlist |
Tagsno overlap | Root causeTreeIncidentQuality | BrainstormingSketchingSpeedDivergenceDesign sprint | BrainstormingIdeationCreativityReframingInnovation | IdeationInnovationCreativity |