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| Criterion |  Product Discovery Working Backwards |  Operations 8D Problem Solving |  Operations Ivy Lee Method |  Operations 5 Whys |
|---|---|---|---|---|
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 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 4-8 h, mehrere Iterationen | 1-6 Wochen | 5-10 min daily | 15-30 min |
Participantsdifferent | 2-6 | 4-10 | 1 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop |
Outputdifferent | Future Press Release, FAQ, Vision Statement | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Daily Priority List, Completion Notes | Root cause notes, Countermeasures |
Tagsno overlap | VisionNarrativeAlignment | QualityProblem solvingRoot cause | PrioritizationProductivityExecution | Root causeIncidentLeanProblem solving |