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| Criterion |  Innovation TRIZ |  Operations Family Tree Analysis |  Operations Root Cause Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
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 series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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 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. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 1-4 h | 2-4 h | 1-4 h | 1-6 Wochen |
Participantsdifferent | 2-8 | 2-6 | 3-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Family Tree Diagram, Pattern Notes, Systemic Measures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | Root causePatternsIncidentSystemic | Root causeProblem solvingQualityIncident | QualityProblem solvingRoot cause |