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Selected:Soft Systems MethodologyATAM (Architecture Tradeoff Analysis Method)Red TeamingArchitecture Communication Canvas
| Criterion |  Systems Thinking Soft Systems Methodology |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Red Teaming |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
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. | For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments. | 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 | High | High | Medium |
Timedifferent | 0.5-3 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 1-4 h | 60-120 min |
Participantsdifferent | 5-15 | Evaluation team, architects, and relevant stakeholders | 3-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | 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 | Challenge Findings, Risk Register, Mitigation Plan | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionSensemaking | ArchitectureCommunicationStakeholdersCanvas |