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| Criterion |  Innovation Crazy 8s |  Engineering Fault Isolation |  Innovation Brainstorming |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
Purposedifferent | 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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 8-15 min | 30-180 min | 30-60 min | 30-60 min |
Participantsdifferent | 1-10 | 1-6 | 4-12 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Sketch Set, Idea Shortlist, Direction Options | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Idea pool, Theme clusters, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | BrainstormingSketchingSpeedDivergenceDesign sprint | TroubleshootingDiagnosisEngineering | BrainstormingIdeationCreativityWorkshopDivergence | BrainstormingIdeationCreativityRisk |