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| Criterion |  Innovation Lean Startup |  DevOps Blameless Postmortem |  DevOps Incident Timeline Analysis |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. | 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. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | Wochen bis Monate je Lernzyklus | 30-90 min | 60-180 min | 2-6 h |
Participantsdifferent | 2-8 | 3-12 | 3-10 | 3-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Postmortem Doc, Action Items, Timeline | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | LeanStartupValidationMVP | Site Reliability EngineeringIncidentLearningReliability | IncidentTimelineSite Reliability Engineering | CausalityIncidentRoot causeTimeline |