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Selected:Opportunity Solution TreeATAM (Architecture Tradeoff Analysis Method)Architecture Decision Record
| Criterion |  Product Discovery Opportunity Solution Tree |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Architecture Decision Record |
|---|---|---|---|
Purposedifferent | When discovery keeps swinging between goals, ideas, and learning loops, it creates clear steering logic. It connects the desired outcome, opportunities, and experiments into a legible structure. | 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. | 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 | Medium | High | Low |
Timedifferent | 1-2 h Setup, laufend | Several meetings plus preparation and analysis; total effort depends on scope | 15-45 min |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Opportunity Solution Tree, Experiment Backlog, Learning Log | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | ADR File, Decision Log, Rationale |
Tagsno overlap | DiscoveryOutcomesExperimentsOpportunity | ArchitectureQualityRiskTradeoffsStakeholders | ArchitectureRationaleDocumentationGovernance |
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