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| Criterion |  DevOps Blameless Postmortem |  Innovation Contradiction Analysis |  Operations Causal Factor Analysis |  Innovation TRIZ |
|---|---|---|---|---|
Purposedifferent | 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. | When a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | 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 technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 30-90 min | 60-120 min | 2-6 h | 1-4 h |
Participantsdifferent | 3-12 | 2-8 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ContradictionsInnovationProblem solving | CausalityIncidentRoot causeTimeline | InnovationProblem solvingContradictionsCreativity |