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| Criterion |  Innovation TRIZ |  Operations Kaizen Event |  Operations Failure Mode and Effects Analysis |  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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 | 0.5-5 Tage | 2-6 h | 15-30 min |
Participantsdifferent | 2-8 | 4-10 | 3-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update | FMEA Table, Risk Priority, Mitigation Actions | Root cause notes, Countermeasures |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | LeanContinuous improvementOperations | RiskQualityOperationsRoot cause | Root causeIncidentLeanProblem solving |