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| Criterion |  DevOps Blameless Postmortem |  Innovation Contradiction Analysis |  Operations Root Cause 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Medium | High |
Timedifferent | 30-90 min | 60-120 min | 1-4 h | 1-4 h |
Participantsdifferent | 3-12 | 2-8 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Postmortem Doc, Action Items, Timeline | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | Site Reliability EngineeringIncidentLearningReliability | ContradictionsInnovationProblem solving | Root causeProblem solvingQualityIncident | InnovationProblem solvingContradictionsCreativity |