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| Criterion |  Operations Fault Tree Analysis |  Operations Failure Mode and Effects Analysis |  Innovation Rapid Ideation |  Innovation Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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. | 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 | High | High | Low | Low |
Timedifferent | 2-6 h | 2-6 h | 5-20 min | 30-60 min |
Participantsdifferent | 3-8 | 3-10 | 1-20 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | FMEA Table, Risk Priority, Mitigation Actions | Ideenpool, Roh-Shortlist, Cluster | Idea pool, Theme clusters, Shortlist |
Tagsno overlap | RiskRoot causeSafety | RiskQualityOperationsRoot cause | BrainstormingIdeationDivergenceSpeed | BrainstormingIdeationCreativityWorkshopDivergence |