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| Criterion |  Engineering Fault Isolation |  Delivery RAID Log |  Architecture arc42 |  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. | 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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | 30 min Setup, dann laufend | 1-2 Tage | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-6 | 1-3 maintaining, briefing for everyone | 1-4 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | RAID Log, Status Report Source | Architecture Document, Context View, Runtime View, Deployment View | 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 | RiskTrackingStakeholdersGovernance | ArchitectureDocumentationCommunication | ArchitectureQualityRiskTradeoffsStakeholders |