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| Criterion |  Innovation TRIZ |  Innovation Contradiction Analysis |  Operations 8D Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
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. | 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 acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | High | Medium | High | Low |
Timedifferent | 1-4 h | 60-120 min | 1-6 Wochen | 15-30 min |
Participantsdifferent | 2-8 | 2-8 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures |
Tags1 shared | InnovationProblem solvingContradictionsCreativity | ContradictionsInnovationProblem solving | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving |