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| Criterion |  Product Discovery Jobs to Be Done |  Operations 8D Problem Solving |  UX Research Affinity Diagramming |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When switching motives and progress are unclear, it reconstructs the situation from real customer circumstances. It shows why a switch happens and what kind of progress is being sought. | 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. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-3 Wochen | 1-6 Wochen | 45–90 min | 2-6 h |
Participantsdifferent | 5-12 Interviews | 4-10 | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Job Stories, Outcome Statements, Opportunity List | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Theme clusters, Insight statements, Opportunity areas | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | CustomerOutcomesNeeds | QualityProblem solvingRoot cause | SynthesisQualitativeRoot cause | RiskQualityOperationsRoot cause |