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| Criterion |  Operations Fault Tree Analysis |  Product Discovery Outcome-Driven Innovation |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | Outcome-Driven Innovation clarifies customer problems, solution opportunities, and evidence. It separates jobs, desired outcomes, importance, satisfaction, and opportunity, and captures results as desired outcome statements, an opportunity landscape, and segments by underserved needs. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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. |
Complexitydifferent | High | High | Low | High |
Timedifferent | 2-6 h | Mehrere Wochen | 15-30 min | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-6 researchers plus sample | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Desired outcome statements, Opportunity landscape, Segmentation by underserved needs, Innovation hypotheses | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskRoot causeSafety | OutcomesInnovationResearchQuantitative | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |