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| Criterion |  Product Discovery Working Backwards |  Operations Causal Factor Analysis |  Operations 5 Whys |  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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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 | Medium | High | Low | High |
Timedifferent | 4-8 h, mehrere Iterationen | 2-6 h | 15-30 min | 1-6 Wochen |
Participantsdifferent | 2-6 | 3-10 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Future Press Release, FAQ, Vision Statement | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | VisionNarrativeAlignment | CausalityIncidentRoot causeTimeline | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |