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| Criterion |  Decision Making Delphi Method |  Operations Causal Factor Analysis |  DevOps Incident Timeline Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | High | High | Medium | High |
Timedifferent | 1-4 Wochen | 2-6 h | 60-180 min | 2-6 h |
Participantsdifferent | 6-30 Experten | 3-10 | 3-10 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | ForecastingExpertsDecisionStrategy | CausalityIncidentRoot causeTimeline | IncidentTimelineSite Reliability Engineering | Systems thinkingRoot causeConstraintsCausality |