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| Criterion |  Product Discovery Working Backwards |  Operations Root Cause Analysis |  Operations Kepner-Tregoe |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When the target state and benefit need to be clear first, it thinks backward from the desired outcome into the product logic. It sharpens vision, objections, and value proposition before elaboration. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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 | Medium | Medium | High | High |
Timedifferent | 4-8 h, mehrere Iterationen | 1-4 h | 2-8 h | 1-6 Wochen |
Participantsdifferent | 2-6 | 3-8 | 2-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Problem Analysis, Decision Analysis, Risk Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | VisionNarrativeAlignment | Root causeProblem solvingQualityIncident | Problem solvingRoot causeDecisionOperations | QualityProblem solvingRoot cause |