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Selected:Design ThinkingATAM (Architecture Tradeoff Analysis Method)Assumption SurfacingAssumption Mapping
| Criterion |  Innovation Design Thinking |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Assumption Surfacing |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 45-60 min |
Participantsdifferent | 4-10 | Evaluation team, architects, and relevant stakeholders | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption List, Critical Assumptions, Learning Plan | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | InnovationPrototypeResearch | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskDecisionDiscovery | AssumptionsRiskExperimentsValidation |