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| Criterion |  Decision Making Assumption Surfacing |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making DACI |  Delivery RAID Log |
|---|---|---|---|---|
Purposedifferent | 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. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | 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. |
Complexitydifferent | Low | High | Low | Low |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 30 min Setup, dann laufend |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-10 | 1-3 maintaining, briefing for everyone |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | 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 | DACI Matrix, Decision Owner, Decision Log | RAID Log, Status Report Source |
Tagsno overlap | AssumptionsRiskDecisionDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | DecisionRolesGovernanceAlignment | RiskTrackingStakeholdersGovernance |