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Selected:Soft Systems MethodologyATAM (Architecture Tradeoff Analysis Method)RAID LogArchitecture Decision Record
| Criterion |  Systems Thinking Soft Systems Methodology |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Delivery RAID Log |  Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | High | High | Low | Low |
Timedifferent | 0.5-3 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 30 min Setup, dann laufend | 15-45 min |
Participantsdifferent | 5-15 | Evaluation team, architects, and relevant stakeholders | 1-3 maintaining, briefing for everyone | 1-3 |
Formatdifferent | Workshop | Workshop + async | Async | 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 | RAID Log, Status Report Source | ADR File, Decision Log, Rationale |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ArchitectureQualityRiskTradeoffsStakeholders | RiskTrackingStakeholdersGovernance | ArchitectureRationaleDocumentationGovernance |