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Selected:Architecture Decision RecordExpectation MappingROAM BoardATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Architecture Architecture Decision Record |  Facilitation Expectation Mapping |  Agile ROAM Board |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | 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. | When roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | When work needs to move between different states or columns, it makes that movement and its handoffs legible. It sorts work by value, risk, and delivery ability. The result is captured as a ROAM Board and an Owner List. | 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. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | 15-45 min | 45-90 min | 20-40 min initial, dann laufend | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-3 | 3-12 | 3-15 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Expectation Map, Alignment Notes, Agreements | ROAM Board, Owner List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | AlignmentStakeholdersTeam | RiskAgileTrackingAlignment | ArchitectureQualityRiskTradeoffsStakeholders |