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| Criterion |  Innovation TRIZ |  DevOps Blameless Postmortem |  Operations Causal Factor Analysis |  Innovation Contradiction Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. | 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. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 1-4 h | 30-90 min | 2-6 h | 60-120 min |
Participantsdifferent | 2-8 | 3-12 | 3-10 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Postmortem Doc, Action Items, Timeline | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | Site Reliability EngineeringIncidentLearningReliability | CausalityIncidentRoot causeTimeline | ContradictionsInnovationProblem solving |