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Selected:Risk StormingHypothesis-Driven TroubleshootingRoot Cause AnalysisFailure Mode and Effects Analysis
| Criterion |  Architecture Risk Storming |  Engineering Hypothesis-Driven Troubleshooting |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 60-90 min | 30-240 min | 1-4 h | 2-6 h |
Participantsdifferent | 4-12 | 1-6 | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Annotated Diagram, Prioritized Risk List, Action Backlog | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | RiskArchitectureWorkshopValidation | TroubleshootingProblem solvingDiagnosis | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |