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| Criterion |  Engineering Fault Isolation |  Delivery RAID Log |  Engineering Hypothesis-Driven Troubleshooting |  Agile ROAM Board |
|---|---|---|---|---|
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. | 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 work needs to move between different states or columns, it makes that movement and its handoffs legible. It sorts work by value, risk, and delivery ability. The result is captured as a ROAM Board and an Owner List. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-180 min | 30 min Setup, dann laufend | 30-240 min | 20-40 min initial, dann laufend |
Participantsdifferent | 1-6 | 1-3 maintaining, briefing for everyone | 1-6 | 3-15 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | RAID Log, Status Report Source | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | ROAM Board, Owner List |
Tagsno overlap | TroubleshootingDiagnosisEngineering | RiskTrackingStakeholdersGovernance | TroubleshootingProblem solvingDiagnosis | RiskAgileTrackingAlignment |