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| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Facilitation Dot Voting |  Engineering Fault Isolation |  Facilitation Nominal Group Technique |
|---|---|---|---|---|
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. | When a workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. | 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. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-240 min | 5-15 min | 30-180 min | 60-120 min |
Participantsdifferent | 1-6 | 3-20 | 1-6 | 5-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Ranked list, Consensus signal, Shortlist | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | FacilitationVotingConsensusPrioritization | TroubleshootingDiagnosisEngineering | FacilitationPrioritizationVotingInclusion |