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| Criterion |  Operations DMAIC |  Product Discovery Fake Door Test |  Product Discovery MVP Test Matrix |  Product Discovery Smoke Test |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-12 Wochen | 1-5 Tage | 45-75 min | 1-5 Tage |
Participantsdifferent | 3-10 | Nutzertraffic | 2-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Async | Workshop | Async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Click Data, Interest Signal, Learning Decision | Test Matrix, Test Plan | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | Continuous improvementQualityProcess improvement | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryOptions | ValidationExperimentsDemandGrowth |