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Selected:Hypothesis-Driven TroubleshootingATAM (Architecture Tradeoff Analysis Method)Fault IsolationArchitecture Communication Canvas
| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Engineering Fault Isolation |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-240 min | Several meetings plus preparation and analysis; total effort depends on scope | 30-180 min | 60-120 min |
Participantsdifferent | 1-6 | Evaluation team, architects, and relevant stakeholders | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | ArchitectureQualityRiskTradeoffsStakeholders | TroubleshootingDiagnosisEngineering | ArchitectureCommunicationStakeholdersCanvas |