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| Criterion |  Architecture arc42 |  Decision Making Assumption Surfacing |  Product Discovery Test Card |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 1-2 Tage | 45-90 min | 20-35 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 1-4 | 2-8 | 1-5 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Assumption List, Critical Assumptions, Learning Plan | Test Card with a pre-set threshold | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ArchitectureDocumentationCommunication | AssumptionsRiskDecisionDiscovery | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryAssumptions |