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| Criterion |  Engineering Fault Isolation |  Innovation Reverse Brainstorming |  Innovation Brainstorming |  Innovation Rolestorming |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | When a search for ideas stalls, switching roles helps people step outside their own perspective and activate new logics of action. The method reduces habit because contributions arise from a different stance. This brings unfamiliar, often fitting solution approaches into play. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 30-180 min | 30-60 min | 30-60 min | 30-60 min |
Participantsdifferent | 1-6 | 3-12 | 4-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Reverse Ideas, Risk Themes, Solution Ideas | Idea pool, Theme clusters, Shortlist | Rollenkarten, Ideenpool pro Rolle, Konsolidierte Shortlist |
Tagsno overlap | TroubleshootingDiagnosisEngineering | BrainstormingIdeationCreativityRisk | BrainstormingIdeationCreativityWorkshopDivergence | BrainstormingIdeationCreativity |