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| Criterion |  Innovation Double Diamond |  DevOps Incident Timeline Analysis |  Agile 4Ls Retrospective |  DevOps Blameless Postmortem |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | Wochen bis Monate | 60-180 min | 45–75 min | 30-90 min |
Participantsdifferent | 3-12 | 3-10 | Team members involved | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | 4Ls Board, Learning Themes, Improvement Actions | Postmortem Doc, Action Items, Timeline |
Tagsno overlap | ProcessDivergenceInnovation | IncidentTimelineSite Reliability Engineering | RetrospectiveLearningReflectionTeam | Site Reliability EngineeringIncidentLearningReliability |