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| Criterion |  Product Strategy Lean Canvas |  Architecture Request for Comments |  Decision Making Argument Mapping |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. | When statements, evidence, and counterarguments get mixed up, a debate quickly loses its structure. Argument Mapping breaks a thesis down into its reasoning and makes visible what it really rests on. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 45-90 min | 1-3 Wochen vom Draft bis zur Entscheidung | 1-3 h | 45-90 min |
Participantsdifferent | 1-6 | 3-20 Reviewer | 1-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets | Argument Map, Evidence Gaps, Decision Rationale | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | StartupLeanAssumptionsBusiness model | ArchitectureDecisionAsyncGovernance | SensemakingDecisionRationale | AssumptionsRiskDecisionDiscovery |