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| Criterion |  Product Discovery Fake Door Test |  Operations 8D Problem Solving |
|---|---|---|
Purposedifferent | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | 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 |
Timedifferent | 1-5 Tage | 1-6 Wochen |
Participantsdifferent | Nutzertraffic | 4-10 |
Formatdifferent | Async | Workshop + async |
Outputdifferent | Click Data, Interest Signal, Learning Decision | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | ValidationExperimentsDemandDiscovery | QualityProblem solvingRoot cause |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
