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Selected:Lean CanvasSAAM (Software Architecture Analysis Method)Assumption SurfacingBusiness Model Stress Test
| Criterion |  Product Strategy Lean Canvas |  Architecture SAAM (Software Architecture Analysis Method) |  Decision Making Assumption Surfacing |  Business Strategy Business Model Stress Test |
|---|---|---|---|---|
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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | 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. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 45-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 45-90 min | Half day |
Participantsdifferent | 1-6 | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Assumption List, Critical Assumptions, Learning Plan | Stress Test Report, Action Plan per Scenario |
Tagsno overlap | StartupLeanAssumptionsBusiness model | ArchitectureChangeAnalysisComparisonQuality | AssumptionsRiskDecisionDiscovery | StrategyBusiness modelRiskDiagnosis |