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| Criterion |  Operations Root Cause Tree Analysis |  Innovation Rapid Ideation |  Operations 8D Problem Solving |  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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | High | Low |
Timedifferent | 1-3 h | 5-20 min | 1-6 Wochen | 30-60 min |
Participantsdifferent | 2-8 | 1-20 | 4-10 | 4-12 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Ideenpool, Roh-Shortlist, Cluster | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | Root causeTreeIncidentQuality | BrainstormingIdeationDivergenceSpeed | QualityProblem solvingRoot cause | BrainstormingIdeationCreativityWorkshopDivergence |