View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Fault Tree Analysis |  Innovation Crazy 8s |  Operations Failure Mode and Effects Analysis |  Innovation Rapid Ideation |
|---|---|---|---|---|
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. | 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 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. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-6 h | 8-15 min | 2-6 h | 5-20 min |
Participantsdifferent | 3-8 | 1-10 | 3-10 | 1-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Sketch Set, Idea Shortlist, Direction Options | FMEA Table, Risk Priority, Mitigation Actions | Ideenpool, Roh-Shortlist, Cluster |
Tagsno overlap | RiskRoot causeSafety | BrainstormingSketchingSpeedDivergenceDesign sprint | RiskQualityOperationsRoot cause | BrainstormingIdeationDivergenceSpeed |