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| Criterion |  Operations Change Analysis |  Facilitation Nominal Group Technique |  Operations Failure Mode and Effects Analysis |  Facilitation Dot Voting |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | 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. | 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. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 45-120 min | 60-120 min | 2-6 h | 5-15 min |
Participantsdifferent | 2-6 | 5-12 | 3-10 | 3-20 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Ranked Ideas, Clarified Options, Group Priority | FMEA Table, Risk Priority, Mitigation Actions | Ranked list, Consensus signal, Shortlist |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | FacilitationPrioritizationVotingInclusion | RiskQualityOperationsRoot cause | FacilitationVotingConsensusPrioritization |