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| Criterion |  Product Discovery Working Backwards |  Operations DMAIC |  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 a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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 | 2-12 Wochen | 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 | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | VisionNarrativeAlignment | Continuous improvementQualityProcess improvement | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |