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Selected:Fault IsolationKnowledge MappingArchitecture Decision RecordATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Engineering Fault Isolation |  Knowledge Modeling Knowledge Mapping |  Architecture Architecture Decision Record |  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. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | 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. | 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 | Medium | Low | High |
Timedifferent | 30-180 min | 1-3 h | 15-45 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1-6 | 3-12 | 1-3 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Knowledge Map, Critical Knowledge Areas, Transfer Plan | ADR File, Decision Log, Rationale | 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 | KnowledgeMappingRisk | ArchitectureRationaleDocumentationGovernance | ArchitectureQualityRiskTradeoffsStakeholders |