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| Criterion |  Operations Root Cause Tree Analysis |  Innovation TRIZ |  Operations A3 Problem Solving |  Innovation Contradiction Analysis |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 1-3 h | 1-4 h | 45-90 min | 60-120 min |
Participantsdifferent | 2-8 | 2-8 | 2-5 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Contradiction Statement, Inventive Principles, Solution Concepts | A3 Report, Action Plan, Root Cause Analysis | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas |
Tagsno overlap | Root causeTreeIncidentQuality | InnovationProblem solvingContradictionsCreativity | LeanProblem solvingCoachingOperations | ContradictionsInnovationProblem solving |