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| Criterion |  Operations 8D Problem Solving |  Product Discovery Smoke Test |  Operations Root Cause Tree Analysis |
|---|---|---|---|
Purposedifferent | 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 demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1-6 Wochen | 1-5 Tage | 1-3 h |
Participantsdifferent | 4-10 | Nutzertraffic | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Interest Metrics, Conversion Signal, Learning Note | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | QualityProblem solvingRoot cause | ValidationExperimentsDemandGrowth | Root causeTreeIncidentQuality |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
