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| Criterion |  Operations Root Cause Tree Analysis |  Innovation Rapid Ideation |  Innovation Morphological Analysis |  Innovation Brainstorming |
|---|---|---|---|---|
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. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. | 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 team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-3 h | 5-20 min | 1-3 h | 30-60 min |
Participantsdifferent | 2-8 | 1-20 | 2-8 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Ideenpool, Roh-Shortlist, Cluster | Morphological Box, Concept Combinations, Idea Shortlist | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Root causeTreeIncidentQuality | BrainstormingIdeationDivergenceSpeed | IdeationInnovationCreativity | BrainstormingIdeationCreativityWorkshopDivergence |