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Selected:Fault IsolationArchitecture Decision RecordRAID LogATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Engineering Fault Isolation |  Architecture Architecture Decision Record |  Delivery RAID Log |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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. | 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. | 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 | Medium | Low | Low | High |
Timedifferent | 30-180 min | 15-45 min | 30 min Setup, dann laufend | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-6 | 1-3 | 1-3 maintaining, briefing for everyone | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | ADR File, Decision Log, Rationale | RAID Log, Status Report Source | 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 | TroubleshootingDiagnosisEngineering | ArchitectureRationaleDocumentationGovernance | RiskTrackingStakeholdersGovernance | ArchitectureQualityRiskTradeoffsStakeholders |