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| Criterion |  Operations 5 Whys |  Innovation Contradiction Analysis |  Operations MORT Analysis |  Innovation TRIZ |
|---|---|---|---|---|
Purposedifferent | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | 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 | Low | Medium | High | High |
Timedifferent | 15-30 min | 60-120 min | Mehrere Tage bis Wochen | 1-4 h |
Participantsdifferent | 2-6 | 2-8 | 2-6 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | Root causeIncidentLeanProblem solving | ContradictionsInnovationProblem solving | Root causeSafetySystemicIncident | InnovationProblem solvingContradictionsCreativity |