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| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Architecture Architecture Communication Canvas |  Operations Root Cause Analysis |
|---|---|---|---|
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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitysame | Medium | Medium | Medium |
Timedifferent | 30-240 min | 60-120 min | 1-4 h |
Participantsdifferent | 1-6 | 2-8 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | ArchitectureCommunicationStakeholdersCanvas | Root causeProblem solvingQualityIncident |
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