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| Criterion |  Architecture arc42 |  Decision Making Pre-Mortem |  Product Discovery Fake Door Test |  Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 1-2 Tage | 20–45 min | 1-5 Tage | 25-40 min |
Participantsdifferent | 1-4 | Small cross-functional group | Nutzertraffic | 1-5 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Risk list, Mitigation plan, Assumption log | Click Data, Interest Signal, Learning Decision | Learning Card with evidence and next action |
Tagsno overlap | ArchitectureDocumentationCommunication | RiskDecisionFailurePlanning | ValidationExperimentsDemandDiscovery | ExperimentsValidationDiscoveryLearning |