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Selected:Soft Systems MethodologyATAM (Architecture Tradeoff Analysis Method)Assumption MappingRiskiest Assumption Test
| Criterion |  Systems Thinking Soft Systems Methodology |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Assumption Mapping |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|---|
Purposedifferent | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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 | High | High | Medium | Medium |
Timedifferent | 0.5-3 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 45-60 min | 1-2 Wochen pro Iteration |
Participantsdifferent | 5-15 | Evaluation team, architects, and relevant stakeholders | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption map, Test backlog, Risk ranking | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskExperimentsValidation | ExperimentsValidationDiscoveryAssumptions |