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| Criterion |  Architecture arc42 |  Decision Making Pre-Mortem |  Product Discovery Test 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. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-2 Tage | 20–45 min | 20-35 min |
Participantsdifferent | 1-4 | Small cross-functional group | 1-5 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Risk list, Mitigation plan, Assumption log | Test Card with a pre-set threshold |
Tagsno overlap | ArchitectureDocumentationCommunication | RiskDecisionFailurePlanning | ExperimentsValidationDiscoveryHypothesis |
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