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Selected:Design ThinkingAssumption SurfacingATAM (Architecture Tradeoff Analysis Method)Architecture Communication Canvas
| Criterion |  Innovation Design Thinking |  Decision Making Assumption Surfacing |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
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. | 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. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | High | Low | High | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 60-120 min |
Participantsdifferent | 4-10 | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Assumption List, Critical Assumptions, Learning Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | InnovationPrototypeResearch | AssumptionsRiskDecisionDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureCommunicationStakeholdersCanvas |